I finally got to shoot my new bowtech 101 airbourne today ,iys set up with a whisker biscuit, and viper sights . I have noticed that the arrows are grouping to the left at about 4" out of center , I moved my sight toward the impact of the arrow ,but I can not move it any farther left.would this be a case of the rest is out of center, even thougth the pro shop set the center shot at center and the nock set at 0. Or is the bow needing paper tuned? Whats your guys opinion?

It could be you and your form, it could be an arrow spine issue or it could be a bow tuning issue or a combination of those.

I would take it back to the pro shop and have them tune it (with you there and shooting also)or give me the correct arrows or both. Unless, of course it is your form but they should be happy to help you a little with that too.

Bruce, Im shooting 28" carbon express rebel lite 6075 at 70#.the only thing that may have my form off would be the anchor point, i am use to shooting with the release at about or below the jaw , now it is at the cornor of my mouth ,as the fletching it used as anchor , the pro shop said i was anchoring to low, thats why they moved it.

Are you using a peep?

With an anchor change like that and not using a peep,this could throw you off.

Or they could have centershot really screwed up.

Another possibility is an eye dominance issue and your sight picture is off.

yes im using a peep , and the right eye.they set the center shot dead on center ofarrow.

How did they do that?

What is the tip weight of your arrow too?

center shot guage , 100 grain tip

I wouldn't trust any laser or guage,I trust eyballing more than those methods.My guess is the centershot is off.Measure to the center of the arrow from inside the shelf and someone with that model might be able to measure theirs to see if you are close.

Even so, with a WB centershot is a good starting place but not necessarely the exact place for shooting straight.
I think you need to go through the motions of tuning yourself, but I would pay the person a visit who set it the first time. Let him check it and maybe do it again with you present.
Are you shooting cock vane up ? Make sure there are no vanes passing through the black fibers of the WB, they are stiffer....
And torque is a killer on the WB, I'm shooting a 82nd and I know the airbornes are not the forgivng type of bow, so no choking the bow.
You might wanna take a picture of you drawing back the bow with an arrow cocked, so we can judge your form. And try and take one of your hand holding the bow.

Frank
Belgium