Okay. Maybe I am mistaken. But I've been watching Tony cecchine's Lost Art of Hooking DVDs, and I came to the conclusion that if Tony is a hooker, in fact one of the only hookers of this art alive, then I figured the things he did would be what catch was all about. 90% of the subs he shows on his DVDs I've never even seen Sakuraba attempt. A lot of shit on Tony C's dvds, he muscles, and boy does he muscle like crazy.
If you would play the analogy that Sak is to Catch as Fedor is to Judo, maybe I'd buy that. I know everyone calls Sakuraba a catch wrestler. If he is, I'm guessing it's from his attitude in grappling (ie never pulling guard, turtling a lot, etc). But as far as his subs go, I've never seen him do anything that actually set catch apart from BJJ, for me at least.
Keep in mind I'm basing this off what I've seen on Tony C's DVDs, which I thought were ae good source for catch stuff since he's supposed to be a hooker, but correct me if I'm wrong guys.