I do find, though, that when I'm diving a cave with a profile that's going to require I do some acute head-down work, I'm better off just squeezing the heck out of the suit and using the wing for buoyancy for that segment. (The entrance to Mayan Blue comes to mind.)
I have kicked out of attached boots and out of overshoes. I have even kicked out of attached boots with finkeepers on them. I'm not sure there is a foolproof way to prevent it, although the Velcro ankle straps on my new Turbosoles look as though they'd go a long way toward preventing the whole fin/sole unit from departing my foot. Having had that happen to me in Twin Cave, I do not want to take the risk of it ever happening in a cave again. (Or anywhere else, if it can be avoided!)
I have kicked out of attached boots and out of overshoes. I have even kicked out of attached boots with finkeepers on them. I'm not sure there is a foolproof way to prevent it, although the Velcro ankle straps on my new Turbosoles look as though they'd go a long way toward preventing the whole fin/sole unit from departing my foot. Having had that happen to me in Twin Cave, I do not want to take the risk of it ever happening in a cave again. (Or anywhere else, if it can be avoided!)