Cave instructors are gonna frown on tank boots anyway, so I wouldn't even bother with them...
If they rode out to the caves and geared up on a boat in 4' seas they'd change their tune a bit!
:shocked2:
That said, I didn't realize when I responded to clifftondiver that I was in the cave forum (nav'd direct to the thread from home page) and the point about boots is well made. Easy to gear up on a truck bed or picnic table without boots.