Peep question for you peeps

[Band]

I just moved a Rad peep from my primary to my backup bow and a curious problem came up.  The peep is oriented correctly when the bow is at rest and through the majority of the draw cycle but then at the last 10% of the draw cycle it quickly turns almost 90 degrees.  Any idea why that might happen and how to correct it?

I have no access to a bow press so I'm hoping the solution doesn't require one.

[RadSav]

Usually the result of poor string quality, but can be caused by cam track issues as well.  Most often track issues result from older style Binary and single cams.

When it is caused by the string it has to do with rate of twist beneath the servings being different than those outside the serving.  When the tension applied to the string changes as the let-off/cam-over happens the string tries to coil forward or back to the shape it was before tension.  Can also be caused by two color strand strings where one color is wound tighter than the other.  That is easy to diagnose as the string at full draw will look like a cork screw.  My recent Hoyt looks like a cork screw even at tension during rest.  But, strings that bad, especially from Hoyt, are rare.  Replacing with a quality made string generally solves the problem.

I have a single cam bow that I made the string in a rush.  Peep does the same thing.  The bow shot so freaking good I decided to just leave it alone until it no longer rotated where I wanted.  That was three years ago and it has never moved a degree!  Time for a new string now so I expect the rotation issue will go away as I don't plan to be in the rush I was the first time.

[Crunchy]

Friends bow had same issue.  Fix was not tying it too close to peep if that makes sense.

[RadSav]

Friends bow had same issue.  Fix was not tying it too close to peep if that makes sense.

That does make sense!  If serving is too close to the peep you are forcing strand twist earlier than it naturally wants to be.  It's also much harder on the string when you get capture servings too close to the peep.

[Band]

I'm still on my original string which does not have any visible twist in it.  Up until now I've had one do those peeps that is held on by 3 groups of strings.  Here is a picture of the new peep that is twisting during the draw cycle.  I'm hoping something in the pic will help answer what the problem is.



One of the peep installation videos I saw online showed serving around the circumference of the peep itself so I'm wondering whether not having that on mine may be a contributing factor to the problem?

[Jellymon]

Serve around that peep! As it is it has the potential to fly out. Some people do that and say they've never had a problem, but I'm not willing to risk my eyes.
It doesn't look like the peep serving is causing the peep to twist, I would say bad quality strings are the culprit.
Also I've had some very reputable strings that still had some peep twist. I replaced the center serving and that fixed the issue, peep is now square at rest and full draw. Something you could try.

[RadSav]

I'm still on my original string which does not have any visible twist in it.  Up until now I've had one do those peeps that is held on by 3 groups of strings.  Here is a picture of the new peep that is twisting during the draw cycle.  I'm hoping something in the pic will help answer what the problem is.

One of the peep installation videos I saw online showed serving around the circumference of the peep itself so I'm wondering whether not having that on mine may be a contributing factor to the problem?

Well there is your problem...That bow is backwards!

Containment serving on the peep is possibly too far away from the peep, that could be an issue. But, it really is not that far from being right so I'd be looking at other things first.  That model Hoyt usually has a major cam lean on the bottom cam.  That could cause twist, but if you are shooting a D-Loop it would stop the twisting from reaching the peep.  So I doubt that is it.

Since you say that is your original string I am assuming this is a second hand bow?   You also say there is not a visible twist in the string.  If true, I'd be willing to bet there are twists beneath the servings and that is your problem!  I'd head out to see Denton at Rock Creek and have him get you taken care of right.  From Auburn that should not be too far.  If you need to have it shooting immediately I do make an aligner that works great with that Super-Duece 38 peep.  The tubing is noisier, but it would get you in business until Denton or someone else who makes quality strings can get you fixed up!

Always, always, always use the circumference groove and place a good wrap of material there.  It does two things - #1. It keeps the peep in the string in case of an accidental dry fire or an object tries to pry it out. #2. Served correctly it will keep the peep from getting moved out of position (high/low).  On light colored string fibers I also use the circumference tie as a location indicator.  I color in the area with a black or blue Sharpie so if it does slip I know that it has and can slide it right back into place.

I can not think of a single peep sight manufacture that makes this type of peep that has not been sued by someone who couldn't take the extra five minutes to use a circumference tie on the peep.  As a result our insurance rates are ridiculous!!!  Every one of those incidents that did not occur due to a cut string could have been avoided had the "Security Tie" been in place.  But don't just do it for me...do it for your own eyeballs!!!  You think an arrow comes out of the bow fast?  Just imagine how fast an eight grain peep sight comes out on a dry fire.  Might as well get shot with a .22

[Crunchy]

Do this first.  Remove the serving above and below the peep.  Draw the bow (with a knocked arrow) and see if the peep moves like before.

[Band]

Rad, to answer your question, I bought the bow new and that's the original string.  It looks like a Hoyt, but it's actually a Reflex (Excursion), a "Hoyt Jr.", as you know.  Thanks for the tip to wrap the circumference, I'll get right on that.  I'd hate to have to sue you when you're trying to save your pennies to make those new broadheads.

Crunchy, I cut off the serving on both sides and I still had the same peep turning problem.  And then I retied serving, a little closer to the peep this time.

For now, I installed the peep so it would turn to the right position at full draw.  While sighting in my new backup sight today I found that after a number of shots the peep twist became even a little more pronounced.  I guess I'll continue to monitor it for changes.  If it gets to the point where it remains consistent I suppose I'll reinstall the peep to match.  Probably won't be buying a new string since this backup bow is unlikely to see any hunting action.

[RadSav]

Rad, to answer your question, I bought the bow new and that's the original string.  It looks like a Hoyt, but it's actually a Reflex (Excursion), a "Hoyt Jr.", as you know.

I gathered that from the green anodizing.  If you bought it new then I expect there is twist to the string.  All one color maybe it's just hard to see   What a great backup bow

Come March I should be free of most of the hunting season and shows.  If you pay to ship it down here I'll set you up with a string NC.  I'm replacing most of my string material this year and hate to just throw the old stuff I do not use out.  Should be fantastic stuff for a backup bow!

[Band]

Come March I should be free of most of the hunting season and shows.  If you pay to ship it down here I'll set you up with a string NC.  I'm replacing most of my string material this year and hate to just throw the old stuff I do not use out.  Should be fantastic stuff for a backup bow!

Oh my, what a great offer!   I guess I'd better see if I can get hold of a box that my bow/case will fit in.  Thanks, Rad!