[MaciekA]

The two most intensely burning questions I can think of answering in this study are:

First, (as others have mentioned and you'll surely hear about on Airsoft Mechanics), the effects of barrel length are extremely interesting. Once volume has correctly been matched to the cylinder and correctly accounted for relative to the strength of the spring, is there any effect whatsoever in lengthening the barrel beyond the exact match implied by the (port-adjusted) volume of the cylinder?

Second, and I'm pretty sure everybody in the airsoft world wants to know the answer to this one: How exactly does R-Hop work, and what does the empirical evidence in your study suggest about potential improvements to the R-Hop design?

edit: Also, a huge thank-you for taking on this work. This is going to be awesome.