Hi Mark

I've got the EV5UPRO 5 function valve, works really well and keeps the installation nice and clean. I use these and the standard valves on most of my builds. I did have a few problems recently but the product support is excellent.

Ive used the UP valves and have found these to be good especially if your wanting something less expensive. Talking of Ultra precision I'm a real fan of their air rams. I normally replace all the rams supplied in kits with these. Their action is really smooth and they tend to work better at lower pressures.

Alex