Two days later, we arrived in Clearwater Beach, near Tampa. There, I had the opportunity to spend two days at the Clearwater Beach Gracie Barra under the tutelage of [Eduardo de Lima]. The first day I took a fundamentals class which was led by Nico, one of Eduardo's black belts. In a wonderfully structured way we were shown the single leg takedown, how to pull the other guy into one's guard in a BJJ setting and finally how to reverse the situation and establish mount with a scissor sweep. Now I hope I didn't forget anything - with all those impressions, I might miss a point or two. If so, I apologize.
Quite a few of the things we did at both BJJ schools were quite similar to what [Andy] covered at the [T36 instructor course], albeit everything was done in a slightly different fashion. For example, the knee pass Mr. De Lima taught us is based on the concept of raising one's hips so that the other guy is forced to climb his guard up. From there, you'd just sit back, using your bodyweight and momentum to open the guard. In contrast, Andy's approach is based on the idea of pushing away from the bottom guy with your arms and arching your lumbar spine. Then, by flexing the spine, you'd again crush the guard and make way to pass over.
I'm certainly not skilled enough in terms of groundfighting to judge which variant is better, but then again, I'm pretty sure the answer is "it depends". I do understand that at the Gracie Barra we did Gi-fighting while [Luta Livre] revolves around no-Gi, but I don't believe that either of the two approaches would be non-functional in the opposite setting, i.e., I strongly believe you could do both passes in a Gi- and no-Gi setting alike. One thing to consider when standing up in a MMA context would probably be the up-kick, while staying low might put you at a greater danger of being submitted (not sure on that one, though).
Overall, I'd say that the mindset and general approach is a bit different in grappling than it is in striking. The fact that there's always a certain amount of control limits the number of possible moves in every situation. This is definitely more so than in a striking setting, where basically everything is possible whenever a fighter is in a proper stance. This probably makes mid-to-long-term planning a more important factor in grappling than in striking. Also, friction (even in a no-Gi setting) slows things down a bit, so making surprise moves is a hard thing to do - of course, great grapplers can do it anyway.
More than ever before, I believe that a striker's approach to grappling should revolve around wrestling and obtaining a dominant position, rather than trying to land a submission. Here, the same principles as in the striking game apply - any offensive action of yours will open a window of opportunity for the other guy to retaliate and take over initiative.