Hey Terry, glad to see this posted. Been wondering about rubber myself. Not for the reasons you mention, though!
I have a pair of Burlys, bought about 7 years ago. They are a pain to get off! I have a small foot, and they fit real snugg in the ankle. Great boot for fit and hunting, no doubt. But you need a "Puller" to get off. That can be a trick in the field, when you're trying to take 'em off to make a "quiet stalk" on a bedded deer! :mad:
Now mine have cracked in the past year and started to leak. 7 years worth of hard use, not bad. I would be interested in trying the Beens.