You might try a two or three point anchor. Mine is my index finger on an upper tooth, my middle finger in the corner of my mouth, and my thumb layed flat and tight under my cheek bone.

A trick Ricky Welch uses is fletching his arrows so the feather touches the end of his nose at full draw.

I've never tried a kisser button, so I can't give any advice there. You are on the right track though--consistency is the key. When you conquer that, accuracy will follow.

Chad