Spratman:
A buddy of mine just finished full cave. Pulling yourself through a high flow cave is the only way you will get through it. You won't fin through it, that's for sure. However, you won't be gliding very much either....
I've never dived the Mexican caves but from what I hear most of the popular caves are low flow. Quite a few of the popular caves in Florida are very high flow so there is going to be some difference in the technique used. Even in high flow caves you can often do more swimming than you might think by reading the cave and sticking to "lower" flow areas.
I myself am not very experienced in super high flow caves...note the word "super" because some of the caves that I have often dived might still be considered "high" flow. I tend to stay out of the SUPER high flow caves unless I'm with someone who knows the cave OR I only take on a very short distance of new cave at a time so I can learn it. This is for the protection of the cave. If you get caught in the wrong place in a really high flow system and lose control, you can do damage.
Something else that seems to have changed is that I think we see more emphasis on going far than on "going well" than we used to.
Maybe this isn't too different than what we see in open water diving. Some agencies, instructors and divers are in such a hurry to get to the reef (or whatever) that they just don't want to take the time to learn to "go well". Everything has to be right now. Personally, I don't see why a diver who is in confined water learning the basics shouldn't take their time and enjoy where they are at. I get kind of bored just hovering and finning around in a pool but I'm pretty good at that by now. A new diver who isn't should really have plenty to keep them busy and when they do start getting to the point when they can do so with some control it will be a new experience for them that can be rather enjoyable. A lot more fun than flopping around out of control in open water if you ask me and I don't think they really see very much that way anyhow.
Once they get that entry level cert the push is on for AOW and 100 ft or Devils Throat or the Blue Hole and never mind that they can't yet dive well at 30 ft.
Going beyond physical skills for a minute I'll put up money that says that I could take most divers who learned to dive right here locally out to the same exact place where they trained, blew through, silted up with all their focus on gettin a card, to Cozumel or whatever, and show them tons of neat stuff that they never even knew was there.
In fact not long ago my wife and I were at a local site and we were talking to some folks from a local shop. The vis wasn't too good that day and the instructor we were talking to asked if we had seen anything. When we started telling her and her students about some of the things we had seen, they looked at us like we were lying and stated right out that they hadn't seen anything.
The fact is that we had watched them blow right by some of the best places without even knowing. Had they been hovering and looking more then finning like they were trying to beat something to death with their fins and silting, they would have seen plenty.
Those students didn't learn what there was to look at, how to look or how to dive so that it's possible to look.