As I understand it, CVA and Powerbelts are made to go together like peanut butter and jelly. That said, PB's get beat up by guys for breaking up upon impact. I have heard their premium bullets are a bit more durable but, man do they have a price tag.
To answer your second question, yes I have. Check this out:
Third, make that first shot count.......the follow up shot is hard to get off when the deer you just missed is staring at you while you're trying to reload.