And for the second and last time (on this thread) - I'm going to talk about Kazushi Sakuraba - as I'm not married to Tony Cecchine's material or his personal track record.
SAKURABA IS A CATCH WRESTLER.
I have all of his early fights on vid...let's say, his first 10-12-14 fights or so.
Go back and watch his escapes from bottom positions.
Then go back again and watch how often he's not on the bottom.
And how many times you've actually seen him use the guard position. (I have a hard time thinking of even one).
How is that possible?
The guy is only 6' tall and weighs just barely 200 (usually coming in around 190).
It's in the training and the philosophy behind the training.
Then go back and watch some of Barnett's last fights before he retired (his 2 with Nog and his fight with Mark Hunt especially).
He's clearly not at Sak's level - but he was getting there. Watch the "style" of grappling that both men are using - and by that I mean the philosophy, ie.- CATCH ANY HOLD YOU CAN...just as long as you either have control first - or the hold (sub) you're going for yields a high potential (percentage) of gaining control over his body for you - regardless of position - EVEN THOUGH TOP POSITIONS ARE FAVORED - and escaping from non-dominant bottom positions (ie.- like the guard) are what's advocated first and foremost...
unless a sub opportunity is there (ie.- a limb or head) for the taking. Otherwise - get up and out. Also watch some of Frank Shamrock's fights in this regard as well - although his catch training was not as extensive as Barnett's and no where near Sakuraba's. (And his takedown defense has always been shaky, to say the least).
Then go back and watch how often Sak got taken down - and how often he landed on the bottom (rarely).
It's a different philosophy in many respects...and I believe the philosophy provides a more dynamic approach than BJJ - and a whole array of subs (and sub opportunites) that otherwise might get ignored.