RE: Short AtoA vs. Longer AtoA bows
I tend to agree with the others. More than just axle to axle comes into play when you are talking about a stable bow setup. However if we were to compare two bows which were identical except for the fact that one was 8 inches longer than the other then I think the longer A to A model would be more stable for most people. It is simple physics involving the weight distribution over the distance that the bow occupies in space. It is simply more difficult to cant a bow clockwise or counterclockwise when there is more distance between the axles.
However, I do also agree with Buck Magnet, etc... in saying that some short axle to axle length bows have excellent levels of overall balance which enable them to feel more comfortable and to be shot more accurately than some of the longer axle to axle length models of yesteryear.