Free: Contests & Raffles.
At this point if your broadheads will group well with each other i would say just sight to them. You could try small rest adjustments but its fairly late and if you dont have experience doing that it could cause more problems.
Those broadheads should fly pretty much the same as the field points. I shoot the same and index the vertical blade with my string. How are yours indexed? Are they all the same?
The advise the others gave to just sight in to your bh's at this point in (limited) time is probably the wisest. When you have more time you can work on tuning, form, or what ever is causing the bh's to group differently.