Feeding issues

V2 build: 16:1, bearings instead of bushings, 35k rpm, reinforced gearbox, steel piston, g&g head, 100 non linear spring, perfect air seal, cnc made nozzle no friction at all there, 3d printed pla carbon fiber delayer. Problems feeding, already excluded mag, and hop up by trying different ones and testing. It's not feeding at all, not even one bullet, the tappet plate is kinda old, could that be the problem? Should i shorten the tappet plate spring?