Edit: Added a new (hopefully better) image at the end.
I am looking to all Mako/Ray/USA owners for some help deciphering if my Mako USA II crown threads are ok. It is difficult, and I mean DIFFICULT, to get this little bugger threaded properly. It is the worst screw down crown I have ever operated; even worse than my Invicta Pro Diver!
When screwing in the crown, I am very careful to first apply some light pressure while turning counterclockwise (ccw), waiting until I feel the detent that signifies the threads have properly aligned, then proceeding clockwise (cw) to engage the threads. This procedure has worked great on all of my divers thus far (6 total). The problem with the USA II is that while turning the crown ccw to align the threads, the crown catches on something and won't continue turning. I can release the pressure and wiggle it loose, but it takes several attempts to get the threads engaged properly before I feel comfortable screwing it down. It doesn't help that Orient has made the crown smaller with the version II, making it somewhat tougher to grip. I've tried the floss trick on the tube threads, but that only seems to help make turning smoother after the threads are engaged. I'm thinking there may be a burr or machining defect on the female threads inside the crown.
How is the crown action with your version II Makos/Rays/USAs? I believe they all share the same crowns/tubes. Do you feel any catching while turning your crowns ccw before threading? Posting a photo of your version II crown tube would really help me out.
I have added some horrible pictures of my own to see if anyone can look and instantly tell if my tube threads are stripped/damaged in any way. For reference, in all photos the Mako USA II is on the left and a Mako I (not USA) is on the right. The Mako I crown threads perfectly. Thanks!
New image below: