would happen to agree with tatorger... I personally wouldn't chop it either, at least not for now.
Seeing that most of your branches that you have growing are not even that old. When did you last cut this ???
I couldn't have been that long ago ???
I'm thinking that perhaps B-NUT should change the name of this forum to "Stump Cutters United" ,or something... since everyones problems seem to be solved by cutting everything off. The funny thing is, that when the new growth comes back, usually you will find yourself back in the same situation. Even more so with benjamins...
I would let the thing go for now... think about wiring what you do have, winter is comming so there isn't much point in cutting now anyways. It's a very good time right now to wire, the plant's growing cycle is slowing and the wired will not bite as bad.
As far as the roots, they need in the future to be addressed. I would perhaps work on them in early summer, depending on how this looks at that time.