Man this title sucks.

I'll try to explain it better. I have 2010 Bengal with 70lbs limbs. When I left the pro shop today, it was set at 60lbs. Now I did one full turn (increasing) on each bolt. What could it be at? Any rule of thumbs applying here?

I calculated the arrow speed using online calculator and I would go from 260 to 270 (appr). Every bit counts, right? Hunting season is so close and I'm too excited to sleep!!!