They set the CDS dial by your zero. Whether its 100, 200 yard zero etc.
Correct, I had them zero at 100 yards because most of my shots are close to 100-150 yards and I like knowing if I have to aim for a neck shot or something that the bullet is going exactly where I put the cross hairs. Usually hunting thick timber or west side Blacktails jumping clear cuts.
If you get the custom dial and don't use the 1/4 moa
So if I'm using the custom dial which I am, then the TBR will be the correct yardage. I guess the whole 200 yard zero thing is for the MOA/MIL system on the rangefinder?