Ion Max'd with a New Designz QEV, Skeleton bolt, detent kit and virtue eye.
VL revolution tripod hopper
Looks great, sturdy, easy to use, hose comes out front not side.
Haven't seen any weaknesses.
Some say that the treads get striped but I run around with a 72cu in. 3000 psi aluminum tank from pure energy. This tank is extremely heavy if you own one or have held one you know what I'm talking about. I have had 0 problems with o-rings being eaten or treads being stripped. Some say that because this produce is made by smart parts that it is no good. I judge the product not the company.
This is a great on/of valve. I have had no problems with it and would have no problem recommending it to others.