Originally Posted by JDoorn
ILLusion, would you recommend applying superlube inside the cylinder and around the piston head?
I generally don't, since I've seen SuperLube oil react with some hop up rubbers. I haven't seen any actual evidence of the grease reacting with rubbers (piston head o-ring, and hop up), but I've been playing it safe and using Systema cylinder grease for all such applications. I'm sure some could make it's way in over time, from slinging off the piston rails and teeth.
I haven't seen any evidence of chemical destabilization between rubbers and the grease, so I could just be over-cautious.