From browsing the Internet I have discovered that users of Force Fins either swear by them or swear at them. After hearing the negatives I would hesitate mightily before buying an expensive item like that. I know some knowledgeable people that use Avanti Plena Mares and swear by them. Personally I've done well with the fins you can buy at a sporting goods store that sells float tubes. I think I have a pair of Browning and a pair of Trout Unlimited fins that serve me equally well.