But his goal isn't to be healthier, it's to be bigger. Yeah, it's not a great goal in my opinion (sorry Matt), but it's what he's going for. It is counterproductive for someone who's trying to bulk up and has a superfast metabolism to do cardio. Some people simply can't keep weight on.
If he's trying to get bigger, why not get workouts from body builders? That is kinda what they do after all. Sure, if he wants to get in better shape health wise, yeah, modify an actual athlete's workout. But that obviously is not what he's going for.
Personally Matt, I think you should do cardio and keep up your routine. Also, do more core stuff. Sure, you won't get such a dramatic size difference as you're getting now, but you'll look better (I think at least) and be healthier. But if your only goal is mass, you're doing it right I guess.
EDIT: Oh, and random guy:
Don't be stupid. Yeah, he obviously needs to work on his chest a bit more, but just because *you* easily put on weight on your chest, doesn't mean skinny Matt will. You obviously have knowledge on this stuff, so you should know something like that.