I currently am using SB twin speed (NEVER BUY THESE FINS!!) They are the softest thing since cotton candy, for me anyway who does mostly shore dives with large waves. I have also tried SB jets and found they seemed kinda heavy, I've heard a lot of good things about quattros light fin or not? I have strong legs and want lots of propulsion for the kick. Force fins?? heard they arent stiff or long enough for heavy surf shore entry?? Any help would he good. thanks guys.OOps guess I kinda strayed from the original thread. sorry