you need to study archery to understand your problem, too many people want to pick up a bow and go hunting without knowing anything about how a bow works. i'm no expert but i read all i can find about bow tuning and can now tune my bow to shoot bhs as well as my fps.

for a start, download the easton tuning guide from there website www.eastonarchery.com and read about tuning (read the whole thing). also do a search on this forum and read about walk back tuning and bare shaft tuning. do a little homework and you won't need to go to a bow shop.
Insatiable