Update one year on.... I've now been using these Smart Gloves for an entire season (about 100 dives) and can honestly say that they are the best dry glove system I've used (and I've used quite a few). I've had no more than a couple of occurrences of wet hands and those were due to an initial failure to get the right knack of donning them (which @becky9 referred to above) and one dive where I trapped the edge of the glove liner in the seal. These were immediately revealed as soon as I jumped in and a quick return to the boat for a fresh liner meant that I have never missed a dive. I've never had a failure during a dive. They are comfortable to use and, although they are a little bulky, they don't feel that way due to the lightness and flexibility. Donning and doffing ones suit doesn't risk chipping any of the boat's paintwork or knocking a fellow diver unconscious as the suit arms flail around. They have little in the way of raised edges, which means that sliding computers etc. onto ones wrists is very easy - they never snag. Likewise, reaching into small holes don't result in anything catching and risking them being pulled off. If I could get them fitted to my Ursuit I'd do so*, but Santi will only fit these to their own suits. I'm certainly specifying Smart Seals to my new E-Lite+ when I order it next week (Black Friday deal). * my Ursuit still has the Waterproof Ultima DGS and with the exception of the faulty O-ring fiasco (reported previously) they have been fine, although I've just snagged a new Fourth Element Ellipse system which I'll be reporting about once I've given them a go.