I did own a Gretsch kit, and loved them, wish i still had them. I had to sell them to pay taxes after i divorced my ex.
I haven't been into drumsmith for a while, need to go check it out again. Anyway, I have been curious about carbon fiber drums, who makes them? We had a Pearl fiberglass kit in high school that sounded sweet, but man were they heavy to lug around. I do think my DW's tune up nicely in the bop range, but then again, i don't play bop and you do so i'll give you the edge on the debate. Because I don't really play bop outside of practise on ocasion maybe there are some subtleties that i am missing that your more aware of.
My DW's did cost too much, but I still luv them.
Paul Mason, owner of Tempus drums (formerly Milestone), is the current, preeminent maker of fiberglass and carbon fiber drums. He hangs at www.drumsmith.com. His site is at www.tempusdrums.com. I don't own them, but, I've tried the fiberglass version. Great drums, bigger sound than most wood drums with less harmonics (complicated ringing). The drums are very thin and light weight, and the gelcoat finish is next to indestructable, good for gigging.