How much does one full turn of the allen screws adjust the # of the bow...?? one turn = ?? 1 lb? 2 lbs? etc

Depends on the bow. 2lbs will probably put you in the ballpark. Changing the poundage will likely affect your tune.

yeh well I will have to put on a new string this winter and I was going to possibly crank the bow back up a turn and go a bit heavier on a my arrows.. thanks Bruce...you know when i dropped the # I was thinking it would screw with my tune, but the guy at Gander Mt said no it wouldn't?

As long as you turn them evenly, you should be fine. Im pretty sure 2.5 turns on my 101st was 8-9#'s
Derek

It all depends on how much you change the poundage and how far from optimum your setup is currently whether it will affect your tune or not. I tunemy setup initially by adjusting the poundage and not the rest so any 2-3lb change would have some effect. It would be most notable when bareshafting.

Anyway, since you are doing a string/cable change then re-tuning is happening anyway. Just so you know, just because you go to a heavier arrow does not necessarily mean you need to up the poundage. I typically will setup my arrow for the midrange, 65#'s, and then, like I mentioned earlier, adjust the poundage to tune things up. My current deer hunting rig is 67#'s.

good stuff guys...I may not even change a thing other than the string...My bow is set 71# and is shooting a 362 gr arrow @ 280 fps and so far I have taken 5 deer with this set up....but I will keep it all in mind...I know I shoot a light arrow, but if i want to get 280 fps at 26.5" draw i have tooo!!!

On my Bengal its 1 Turn= 3 pounds

As it is on most bows. Some guys think it depends on the amount of threads on the limb bolt, but all 3/8" limb bolts have the same thread pattern. The only difference is in limb design.

Same with my ROSS and my Bear

I just turned my Allegiance back up after hunting season. It was about 3lbs for one full turn.