I'm new to the UG forums and I need some help with some info on this guitar.It's a Washburn NX6 USA custom shop model.It has three single coil dimarzio's that were added later.I heard that the N6 Nuno guitars had a backbow problem with the neck that couldn't be fixed does anyone know anything about this guitar?Or if these had the same problem.I have searched the internet for a day and a half and not really found anything useful.I also frequent Harmony Central but with my screen name I hardly ever get any help,unless it's a strat or les ****ing paul question.Any help would be greatly appreciated as I'm about to pull the trigger on a trade for this.