And so a pizza/beer-ly good time was had by all. Terry Maas showed his latest video, some scenes of which have already appeared on YouTube and discussed the rescue vest that he and his associates have been developing for the last couple of years. Check out the site on it at Shallow water blackout. An interesting property appeared in sea trials. It seems that the hump that the device makes on your back streamlines you when you dive with your face toward the bottom and your head back. "By accident" Terry found that his underwater efficiency was improved by some 7%. This is remarkable. With an additional bit of monkeying around, he is quite sure that this can be improved to 10%. Naturally, such a device will not be cheap and in any case it won't hit the market for at least another two years. But if young cowboys can manage to stay alive that long there will be an old guy's invention to keep them diving for many years to come. Hope they appreciate it.