What is the benefit of that? vrs just putting an inlet next to the exhaust?

Plus, I saw someone talk about using an alternate line instead of a equalizing hole in the piston. Good idea?

still doesnt answer the one question. how can you have a barrel sealing t-valve with the inlet on the chamber and not the pilot area? What am i missing. Spring?

so the do you use a spring so that the pilot area has a touch more pressure to keep from just pushing the piston into the pilot area and releasing the air while filling?

So for the SV its o-ring? I figured it was just a stopper seal against the chamber side. and o-ring seal on the pilot side ...

wow i am confused then. How do you apply pressure in the pilot area if filling the chamber on a chamber fill valve??

OK, am sorry if this is a repeat...

I am planning on building my first pneumatic. I am the type I try and make the best possible first time out. I know i will improve on my own findings but I have to start with something. I live in SoCal so I am no rush because I wont really shoot until I visit my ...