I'm, in the process of comparing fins now for the shop I work part time at. Right now I use the old aqualung blades,actually have two pairs and if another comes up on ebay I'll get em. But I'll be comparing the V-12's, scubamax turbothrusters, oceanic vectors, two new sherwoods that we are getting in and any others the owner wants me to check out. This is for sales knowledge on my part and personal knowledge as a DM. So far the V's and turbos are not even close. I don't care for the turbos for anything except straight scissor kicking and even then they are not up to the blades or V-12's IMO. I can do anythign in the splits except back finning efficiently. I can frog, modified frog, helicopter, hover, and hold station easily in the pool. OW is alittle different especially if there's a current. So far they do not seem come close in acceleration, thrust or control as the blades. Especially in a drysuit. Ideally I need a few more dives and pool sessions with the various ones before I'll give a definite opinion because some of this may admittedly be biased and based on experience. Alot more with the blades. So to be fair it may be my technique that may need some tuning with in these various fins. Hopefully within the next two or three weeks I'll have a more definite and balanced report and will post it. I was hoping to be done by now but the holidays and a death in the family postponed some of the testing I planned to do.