The problem is the rules these days are geared against it.. it is the most effective way to play the position bar none if you have the talent to run the scheme.
Honestly, the Tampa Two and its mates are put in place to do two things, minimize the penalties and cover for corners that can't play the position in a face up manner.
I love the way we play the game if they can stay even in the match ups.. but when we are in a mismatch (TO, Buress, WR of that ilk) we need to have a secondary game plan in our pocket.
But as to your question.. heck yes bump and run, jamming at the line of scrimmage is a treat to watch.
Oh and we do get away with a little bit extra bump or hand play.. there is no doubt about it.
"The oranges are dry; the apples are mealy; and the papayas... I don't know what's going on with the papayas!"