FORGET IT! his parts dont fit, bought a few T19s the GEN bezel insert wouldnt even fit over the crystal, the crystal cracked during installation. his retaining rings are too large as well let moisture in under the crystal, his 703 tubes rip in half when you install them its like theyre made out of aluminum, his 703 wrench tool is a bloody joke since all that's counteracting your force as you screw down or unscrew a 703 tube is a little [censored] (really? they censored k n o b ?) of plastic which gets chewed away with the pressure. it broke around the second time i really used it.
clarks is way better for crystals, yuki tubes im now convinced are a good alternative to gen.