I'm going to comment on two things here, and these are just my opinions.

One, putting your thumb behind your neck is a big no no. If you can do this your draw length is too long, or your release is too long, or both. That is one of the first form problems you should look for when looking at someones set up.

And two, I would advise against the kisser button. I know lots use them, even my best friend uses one because I can't get him to take the thing off. You don't need a kisser button and a peep sight, they are redundant. And the peep actually works better. Kisser buttons are for bows without peep sights. Also the way most set up a kisser button is the wrong way any way. You should not be anchoring it to the corner of your mouth. This is the most inconsistant spot on your face because you can move your mouth the kisser button. If you use one try and anchor it to a tooth or something you can't move. But really all you are doing is adding more weight to your string.

This is what I suggest doing. Have the peep taken out of your bow. Then find a comfortable consistant draw position with numerous anchor points that you can repeat. I lightly touch the string to the tip of my nose, and the string intersects the corner of my mouth (where your kisser button would be) and the fletching of the arrow contacts the point between my bottom lip and my chin. Then I know where my hand contacts my face under my ear.

I actually shoot pretty well without a peep at all this way, but I'm more accurate at longer distances with a peep.

After you do this, have the peep put back in. Then draw the bow with your eyes closed to these anchor points. When you open your eyes the peep should be right there. You should not have to bend your head in or move around to find it. It should just be right there.

And remember while you are doing this your upper body should be directly over your hips, and your back, neck and head straight and aligned. Not leaning back or dipping your head into the string.

When you do all this you will be able to draw your bow and look thru your peep and everything will just fall into place. This is what the peep is suposed to do, but if it isn't set up correctly in the first place you are screwed from the get go.

If I have time later maybe I will post some pics of pros and you can see how they draw and anchor. Or if someone else can do it for me that would be great. I think we used to have a thread like that somewhere, and I know there should be numerous ones AT, but I don't go there anymore, maybe someone that does can put up a link or something.

Good luck,
Paul