I agree with Matt, that many reps is a waste of time. You should have good form on the dip and pull up before you use them in your workout anyway. The ultra high reps are not argued for most things at all, because we know it doesn't work. For some reason bodyweight, calves and abs are somehow magic and they are able to defy all physical laws. The law seems to be that time under tension and progressive overload and such don't apply to calves and abs, but they do apply to all the other muscles. Then of course if your body weight is involved, these laws don't apply to ANY muscle. Except squats of course, unless you do them with 1 leg of course. Partial body weight does not count of course as bench dips require weight but p-bar doesn't. Abs are body weight, so are they magic themselves or do they gain magic status from bodyweight? Calves have to be magic on their own, because while the standing calf can get magic status from bodyweight, seated and press machines still have magic status which must come from the calves themselves. This appears to hold true for the soleus, the gastrocs and even that one on the front. In fact the whole lower leg appears to be completely magic. Could it be that the because you walk around on it all day, it absorbs all that body weight and that is what makes it magic? I think it must be, therefore we can simplify all this by saying that bodyweight must be magic. I'm afraid I missed this lesson of Catholic dogma exercise when I was in Catholic school. Maybe I was sick, or the nuns forgot. They were pretty old you know.
Brother Maynard, bring out the holy book of exercise!
"Holy book of exercise, chapter 1 verse 1
And yea the Lord did speak, bless this oh bodyweight, that we may do ye all day. That we may buildeth thy muscles by doing it many times. Thy muscle shall become so absolutely huge, With the strength of 1000 orannutans. So that thou may smite thy enemies with the wrath of God and smash them to tiny little bits."