I know that I will catch some slack for this one, but, I have noticed the opposite. When I was shooting my Browning Mirage Hunter (38" a.t.a.), I found it un-stable. If I moved a little bit, it would shift the weight of the bow and want to pull towards the way I moved it.

My Mt Sport (34" a.t.a.) was much more stable. It was lighter and shorter, so, when I moved, there was less " leverage" for gravity to pull.

My MightyMite (31 1/4" a.t.a.) is the most stable bow I have owned. When I get to full draw, the bow sits DEAD. It just DOESN' T MOVE!!!! Also, along with that, the bow seems to be more evenly balanced over the entire bow than my other bows. Not just that, but, it will be nice when manuvering in those tight spots when I am chasing that big buck.