Call ahead and find out what regs the shop is renting you in Belize and ensure whatever mouthpiece you bring fits that reg.
If you've just got a "standard" mouthpiece, it'll fit any reg, as it's nice and stretchy. If you're using one of those custom mouthpieces... um... bring the reg you've attached it to.
(Would anyone actually use a SeaCure on a rental reg?)
Actually, come to think of it, I've had at least one or two students who had special mouthpieces. If I didn't have them at the shop (where I have piping hot water available to assist me), they would likely not make it on the regs. I'd certainly recommend talking it through ahead of time so you can have the right size and so they know they've got something to do.
Some shops actually have their students buy their own mouthpiece to use on the regulator during classes. They don't zip-tie the regs in place in the pool but I think I would want it secured for regular diving.
Our shop requires the students to have their own mouthpieces, and we absolutely zip-tie them on in the pool. It would seem like a very bad example to say, "This is important for your safety, but we're not going to bother in the pool." (Not to mention, people seem to learn better when you have everyone check that their mouthpiece is secured versus when you pretend. We don't pretend we're clearing our masks, do we? :biggrin:
Don't answer that, e.) I can understand that you could go through a lot of zip ties this way, but considering the stories I've read about people losing their mouthpieces mid-dive, I consider it a cost of proper education.
When I'm working with classes, I also use the zip-tied mouthpieces to my advantage. After class on Sunday, I gladly clip off the zip ties... but only as I load each student's BC/reg, on the correctly numbered hanger, into the van. If they don't have the right gear or hanger, or if something's wrong, I let them correct the issue before I take it and give them their mouthpiece. (It's amazing how even something as small as a mouthpiece is incentive for the less inclined students.
)
By the way, having seen more than one person bite through a mouthpiece (for the record, that's biting *way* too hard
), requiring everyone to have their own mouthpiece is a convenient way of avoiding mouthpiece wear and damage.