I did cock it.
It holds gas till the hammer falls and then the valve stays open.
Seat was Translucent Urethane. I damaged it and have been tying to get it to work with a green O-ring. I have urethane O-Rings coming in both 70 and 90 duro. Which do you recommend?
I also replaced the 010 on the power tube with a new urethane 010.
Are the delrin seats O-rings or flat washers? Do they work better? I've got black and brown ATF Delrin I can turn on my lathe.