Originally Posted by maestro
I've got experiences only with my Feinwerkbau, it has a 62 cm long barrel, the reg pressure is set to 80-82 bars with a bigger chamber. This means sadly wasting the air but in exchange the velocity is more constant. The factory setting was 110 bars with a much smaller chamber and it could do more shots but the velocity moved up and down within 5-6 m/s.
I mentioned to Gcos today the exact same thing above. The only negative could be lock time compared to the shorter barrel. 82bar reg pressure with reduced hammer spring tension working easier. I might try it between Monday and the classic.