I remember a debate happened a long time ago on a blog now gone about Vic Amuso being "old school" and Casso being a violent psychopatic rat. I agree about Casso (even though I don't see why would him being a rat be worse than the fact he was a multiple murderer), but why Amuso is considered old school I have no idea. One of the people in question claimed to have known him personally. Even so, considering the fact he had such an individual as Casso for underboss, that must mean he didn't really mind his paranoid and extremely violent methods.