Hey, sorry for the English. This is NOT a Patitucci model at all. The "P" in the model name does not stand for Patitucci.
Both Patitucci models were bolt-ons, not neck-througs. Those were called TRB JP and JP2, respectively.
This is a first generation TRB 6P and an early one in that, too. They added the dual truss rod for the later TRB-6P's
Still this is a nice instrument and very versatile. Just wanted to clear this up. Hope it is not offending the seller.