Production began today on the Tek version. Don't know if any shipped. Fisher next week. The delay was two-fold. First, when units from the pilot run were water-tested a few failed at 10 feet. We determined that the Gore membrane isn't reliable to 10 feet, so we backed off to a 6 foot rating. Second, the overmolded plastic was difficult to get right, and to make that job worse the molder (USA, not China) shut down for Christmas. But what I saw today was really nice and worth the extra wait.