I've seen several training schedules and none of them involve dips. I have to wonder why that is, dips are among the best ways to build up your upper body. Infact, if your'e familiar with the UFC you may know a guy by the name Carlos Newton. He's a big muscly jiujitsu master, my god this guy is cut. But the thing is he never lifts weights. The only thing he's done to get more muscular (besides jujitsu) are dips. If doing only dips can make someone as strong as it made him, I would imagine it'd be a hell of an asset to your routine.