There's's more than I'm not 100% sure of, though, I've heard things like "regular" 3/8x10 shafts will interchange (sounds like a bad idea to me, but my mind could be changed), and that a Chudy will "just fit"...
I was thinking of getting one of the "new&improved, laminated , cored, filled and chilled" shafts - but then the Meds hit again and took that idea with them!
My dad just realized he has this TW cue (he couldn't for the life of him remember whos cue it was, until we realized there was a hidden signature :grin, which has 2 exra shafts. I'm sure he'd be willing to let one of them go if you're interested. Let me know if you would like pictures of just the shaft. I believe they are unchalked as well, I'll get back to you on that.