Guys, send me your info. I have been working on some changes for some time, and will be implementing them soon. The initial design erred on the side of not taking your fins off, and honestly in several hundred thousand Newton-seconds if testing on our part the rate of failure has been low, but it is apparent that something else is afoot so I am going to toughen them up a bit.
In response to the manufacturer who, having stolen all of my work and skipped over all the investment, the development, and the hundreds of thousands of Newton-seconds of testing to prove the concept, now has taken all my hard work, made a few small changes, and put something on the market, I suppose I'll be ripping off anything of value that he might have. I can't say I am too impressed with him, especially considering that I personally witnessed him yelling at someone a few years ago for producing sleds similar to his. I hope he likes what's coming. There are also some things about his design which betray a lack of understanding of failure modes, and it'll be interesting to see how he responds when their use becomes more widespread.
I consider him little more than an intellectual thief. The hinge, the rods, the four-button configuration, the very idea that this can work for high-power cost me a lot of time and money to develop and prove. It is no different than if he were producing guillotine fin jigs, which on this forum usually yields a negative community response.
I am sorry that your experience has been poor. Things are in the works, and I'll do my best to make good on the products you've purchased from me.
Bill _/)_