Interesting thread. I have a P-09 Suppressor Ready and when using it with my Rugged Obsidian 9 I notice 1) it shoots fantastically, but 2) I get a fair amount of blowback, more so than my P320. Maybe it's because my P320 has a RMR and it might be deflecting some of the gasses, or the fact the P-09 is hammer fired so perhaps that has something to do with it with regard to gasses blowing back through the slide. Curious if anyone has experienced this with the P-09.
Also, I installed a 18lb hammer spring as part of the Cajun upgrades (left the recoil spring stock), and noticed brass ejection when suppressed is certainly more than when unsuppressed. The pistol seems to kick brass farther away with the 18lb hammer spring as opposed to the stock 20lb spring, but really kicks out the brass now when suppressed. Are there any concerns with regard to undue frame or parts wear given a 18lb hammer spring and suppressed shooting of the P-09?