I also think the biggest change you'll see is because of the effects of gravity, all else being equal. And I totally agree with BG on this.

I use a nopeep and bend at the waist so I'm pretty sure my form is correct. I've found that from an elevation (my feet at 20' up) my 10 yard pin shoots to 17 yards. My 20 shoots to 24 yards. My 30 shoots to approx. 32 yards. So I believe it is entirely gravity at work because the difference is greater the closer to the bottom of the tree I'm shooting.

My advice is to shoot from an elevation that replicates that at which you will be hunting from. You need to not only get your form worked out (you want to be comfortable making the shot at the moment of truth), but you also want to know exactly how your bow will shoot from that hieght. You'll figure it out<img src=icon_smile_wink.gif border=0 align=middle>.

God luck this season Aaron and everyone!

-Chief