Thanks Chris
I have found a few lower pressure co2 paintball regulators, but yes, most of the lower pressure paintball stuff is HPA.

I have sent a few messages to clarify the ruling on the 'lowest pressure components can handle'. Is this the regular operating pressure, or the proof pressure?
As soon as i figure this out it will decide if i run a 10bar or 16bar system.
I would obviously prefer 16, as the cylinders are then smaller, lighter and cost less!
As of yet i cannot find a suitable 16bar rated 5/3 solenoid valve to run my cylinders double acting, though i would think they are proofed to~15 if regular use is 10bar