Yeah, you should be able to hack it down about halfway and it could/should be OK. I'm not 100% sure...but i had a veggie get pretty tall on me and i cut the main stem about midway down and it's doing just fine. If you look at my white rhino in this grow ( http://boards.cannabis.com/growing-i...ml#post1918765 ) That's the plant i'm talking about. Everything below the chop just started branching and growing.

check it out, let us know.
Skeet