I'm also in the process of installing my first set of retracts. I'm noticing that my air system leaks approximately 10 psi per hour. I would presume that this is unacceptable. It would probably be worse in flight with all the vibrations.

Should the air system be completely sealed? If I fill the air system to the recommended 100 psi and then leave it alone for a few hours (or days, or weeks, or months), should I still see the 100 psi when I check it again?

I hope I'm not deviating too far from Josh's original question.

Thanks,
Josh