Well, I've had a chance to re-discover the old Jet fin. I must admit with the right size heel springs, they arn't bad at all. I may even switch over. The springs make it very easy to get them on which I really like. They are a bit tough to get off due to the suction inside. The propulsion seemed to be OK and the frog is very good. I'll stay with them for more dives to dial in my final answer. So far...Not Bad. Craig
