I will tell everyone that I was impressed immediately with the thrust generated. The fins plain and simply work! I will also tell you that for there is no comparison to conventional fins. The science is real. I am retired Military and I have already contacted several people at the action offices that evaluate dive equipment for our most elite divers in the Navy, Army, Air Force, and Marines. The people I contacted today are all interested based on my first hand experience, and trust, knowing that I would not waste their time. I work for a major manufacturer of military rebreathers and we will be testing and considering a possible manufacturing arrangement next week in Tampa. For the military combat diver, Pararescue, or free diver these fins produce more thrust and speed for the same level of effort. The carbon fiber free dive fins look cool, but do not provide the performance one would expect. If you try these, you will junk the ones you have. I recently bought my Scubapro Seawing Novas, paid $200.00 for them, I really felt good about the improvement I got from them, but today ruined that perception, I saw and used some fins that are vastly superior. I will be working to help get these into production. There are benefits for the average scuba diver in that these fins produce thrust when conventional fins just produce turbulent water. You have to see them and feel them working in the water, it would be difficult for me to describe here. 5 minutes in the water will tell you everything you would want to know. Shotmaster.