New to airsoft just a background to why I ended up here - I play in South East asia - there are no set fields per se, as a result, no set rules, no fps limits. for some reason, everybody is shooting hot - 500+ fps at least. The E&C m4 I got stock was already at 430 fps somehow I got talked into doing more. shs 18:1 gears, guarder bore up kit, sp150 spring, shs hi torque 11.1 lipo. tech didnt believe in radiusing, red flag was a smashed piston head. replaced it with aluminum piston head with no sorbo padding - v2 gearbox cracked after around 20k ish rounds. got my hand on a lonex gearbox and I dont want it to happen again. realistically what do I need to do to have this thing last? lower springs? Lonex gearboxes are supposedly ok-ish - what can these handle and still remain intact? as of right now, I'm not stuck on the idea of ridiculous FPS, I just wanna play and not have to worry about it.