I've built 6 string Jackson RR style guitar before and now I need king v style 7 string guitar. I was wondering could I use body jig from RR for king v? There are some differenced like center of RR body is not on the "lowest" part of wings, but in king v it is (I think). But is long wing in RR about same size as wings in king v? I didn't find any plans for king v to compare with. I'll do jig for king v, but should I use RR jig (long wing) as guideline? Neck is wider for 7 string (also headstock) and I need to take that also for consideration. Any other hints?