Oh man! Those are great drums. I have a set just like those except in black. I bought them new in 88. In 2009 I bought a new set of birch custom absolutes and I swear the PTC drums sound just as good. Is there a knob on the side of the larger rack tom for a internal muffler? My drums don't have that. They are definitely PTC drums though. They'll serve you well congrats.
I used to have one of those with the 20x17 kick, it was a great kit for the price I used pinstripes to and it sounded great to me, got a fair few compliments at gigs too so must have been ok. I tried coated emperors on it too but that didn’t work for me at all.My gig kit. Early 2000's Yamaha YD Series in fusion sizes.
Tuned well, they sound great! Evans G2 over Yamaha original resonant heads.
I'd like to throw some pinstripes on them to see how that sounds.