[Miki01]

Question for some of the gun docs in here. Running my hopup completely off nets me 350fps on 0.20g, however turning it on slightly, basically to what I normally run it at on 0.28g, but still chronoing on 0.20g BBs it's netting me 386fps.

Gun in question is a G&G RK74 CQB. Hopup forward is completely stock. In the gearbox I'm running an M100 spring, SHS tappet plate and aluminium and it nozzle with o-ring, piano wire 9lb test tappet return spring, A1A Type D ported cylinder and silent double o-ring aluminium cylinder head, Madbull PX-02 piston and Modify ball bearing aluminium piston head.

The gun chrono'd the same way albeit less FPS before I toyed with the gearbox compression components.

Would it be a bad air seal at my hopup with the hopup disengaged?

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