Nothing wrong with the ring. Works well. I do prefer how the ring on the older PT18 Pro was locked into the tailcap though. This PT16 ring won't move up or down, as it is locked onto the tailcap from vertical movement, but it can still spin around the tailcap to a slight degree, whereas the ring on the PT18 Pro won't spin at all, which I prefer.
Edit: After using the ring a bit more, I think that having the adjustabilty of rotating it to where it works best for each individual is probably a better design. While it does rotate, it's not excessively loose or annoying. I found a certain orientation that works EXCELLENT for activating the main tail switch with your knuckle when using it in the same style as a T. Switchback. Works better, and it is more comfortable than the ring on the PT18 Pro now. Great ergo's now that may not have been possible with the tailcap locked in a particular position. Changing from 4 stars to 5 stars!
