However, with the 744T, I think you can do something like this (you need a special cord to go in the timecode port):
This would be the only drawback, folks would need to run a cable to all their positions to jam the TC.
The only other thing I'll add to the great info that is being shared here, is that just because you have more mics in the air doesn't mean you'll end up with a better recording. It's still all about positioning, mics & preamps, and all the other things we take for granted. The only thing the TC will do is help you in post. Layering 4 or 5 sets of mics on top of each other won't necessarily get you that top notch recording.
Wayne
Nope, you've got that WRONG. That's what jam-syncing does. You link up the two 744t's together, jam-sync them, then disconnect them, and if they are in FREE RUN mode they will continue to be in-sync for long-periods of time WITHOUT being connected to each other at all. That's the whole point of jam-sync. Again, I'm not claiming this can be done specifically with the 744T, but it can be with loads of other gear, and it is my understanding that it is totally possible to jam-sync multiple 744t's together in FREE RUN mode. You only jam-sync once, then disconnect. (There are other ways, which involves a constant physical connection, but that's not what I'm talking about -- check your manuals for FREE RUN JAM ONCE or something like that).
And, I totally agree about more mics does not equal better sound. BUT, if you were strategic about it, you could get way more COVERAGE (video term again, LOL!). How many times have you recorded AUD and then later wished you used a different set of mics or were in a different location? Plenty I bet. Well, get four guys to jam sync and then try four different things -- different locations and different mics and different stereo configs. Then in post, maybe you only use one source, maybe you mix two, maybe they all suck. But you have options that you wouldn't have had otherwise, and thus more coverage.
Also, this is more than just being about syncing multiple sources, this is about STAYING IN SYNC TOO (aka drift)! Those 744T's have high-end crystals in them people, and once in free run mode locked to a certain frame rate, the odds are WAY BETTER you'll stay in sync over time. In fact that is the main benefit, anyone can sync up the start of the show, it's KEEPING SYNC at high quality without having to stretch that is the benefit of jam-sync.