Hi Guys,
I found a quick fix for the leaky and stickey SS. Knock the pins out to remove the main cylinder and spring. On mine the bore looked like it was polished with a file. I used a dremel felt wheel polisher with metal polish compound and polished it to a mirror. Also the actuating rod needs to be longer so the movement is as linear as possible, otherwise shhhhhhh......
Cheers
Andre