RE: ? for you bowtech pros
You could try French tuning. By the way, on my '07 Ally I have my arrow centered on the top of the berger hole.
I prefer French because it seems to take the least amount of time, is simple and straight forward, lets you practice and a distanceand to me has proven to work.
Stand about 4 yds away from the target and sight in your bottom pin (50 yd)to hit dead center.
Go back to 50 yds and use the bottom pin shooting 3 arrows. If you hit left move the rest a hair right. If you shoot low move the rest a hair up. Reverse for right hits and high hits.
Go back to 4 yds and see if you are still dead on. If not, adjust your sight to correct this and then go back to 50 yds and shoot again and adjust accordingly.