ever watch world's strongest man? Mario Pudjanowski
He is definately the most chiseled one of those guys, I guess he doesn't eat just polish sausage when bulking.
As far as skipping the cardio I pretty much agree with sngle_chck, I don't think its going to matter that much as long as you are still doing it. When I bulk I focus most of my energy on my lifting also to get the muscles growing and tend to worry about my cardio less. But I still make a point to do it so that I don't put on pure fat. So go ahead and cut it back if you want, just don't cut it completely out.