I would have to agree on the eye thing,,,that is very imprtant on shots like that.
And so is your footing,,,,that is something you may want to look at.
It is realy hard to know forsure,,,,Not being abel to see you shoot.
But common stuff like keeping both of your eyes open and foot stance are easy to forget.
Some times when I find myself not hitting a target very well,,,I allways think back to the basics...seems like the basics are the most easy to forget.
If you every shoot north of the cities and need a hand let me know and I can spend a few hours with you,,,if you would like.
Shut up and Shoot