Thanks for the reference AustinWolv.
Yes indeed the testing is underway. I've just yesterday posted some updated results on full metal pistons and testing is continuing on the plastic pistons. It is pretty clear to me that Classic Army's "reinforced" yellow piston is no more reinforced than a standard Marui piston, and my actually be less so, atleast according to my testing. Measurement with a Barber-Colman Impressor also shows the CA piston to be made of the softest plastic material among the test candidates. This is not to say that the CA piston is not fully capable of handling the s
