i play a Fender Jazz bass right now and am going to buy a Warwick Thumb 5-string as my next bass. there are 3 types of this bass though... the normal neck-thru assembly, BO (bolt-on), and BO BN (bolt-on, broad neck) i was wondering if anyone has played any 2 or 3 of these and could tell me of any significant differences while playing? i.e. comfort, playability, etc.. mainly between the bolt-on and neck-thru models. thanks!