RE: Yes, another form thread.
I agree with the release comment. The more reaching you have to do, the more movement your going to get out of your body/bow.
It is also hard to see from the picture, but I would make sure you have a GREAT anchor. Anchor in the same spot, the same way everytime. The biggest thing in archery is consistancy. Doing the exact same thing everytime all the time.
Some may argue this, but I truely believe that archery is:
5% equiptment
5% form
90% mental
That is basically what backtension is. Training your body & mindto do the exact same thing everytime. If one isn't there, your release shouldn't go off.