RAWHIDE, personally, I own and have shot pretty much the full spectrum in terms of R/D and I'd say the forgiveness, stability, smoothness, and spine versitility tend to increase with length and straightness of the limbs.
I can't stress the importance of length enough in my book. I find "64 'curves more forgiving and stable than "60 highly r/d lbs.
But a lot of that has to with the amount of deflex on a shorter bow as well. The Shrew bows in particular, with a lot of deflex, are quite stable, accurate little bows.