I actually saw them live a few years ago and to be honest both me and my mate's first thought was - stick to wrestling.
A lot of my friends actually said they sound ok, but the main problem always seems to be that "he sounds to much like Chris Jericho the wrestler." Admittedly, I always understood that comment.
It was 4 years ago and my memory isn't wonderful but from what I remember it was just the fact that his voice wasn't that strong.