Buddha chronoing a gun is a very suspect form of testing the consistency and flow of an air system. All it tests is whether the reg returns to its set level.
When you go out o play I imagine you are shooting at 6+ bps most of the time, here flow is important. Note the WDP inline reg is consistent, but does not flow or recover very fast.
In order to test an air system you need to test it on gun at high rates of fire.
I agree on the testing points. Thing is WDP won't make public their testing and if AGD (one of the few practising scientific testing) were to make their results public people would dismiss it or attack AGD. A dilemma.
Really need PGI to invest in some high spec testing kit then give us the real deal. Justin Owen made me laugh in his review of the excalibur, he shoots it a few times and then comments on its long term reliability.