I have a 99 Marin Riftzone with the Fox Vanilla air shock on the rear I am 5'8" and weigh about 160, I want to know approximately what should the air pressure be. I am just now getting back into riding and don't plan on any big hits for a while. I just had new seals put in the shock, when I got it from the shop it has 150 psi and then I added some making it 175 psi, I took it out and was tooling around with the kids on there bikes and it felt mushy like it leaked down. Away any suggestion on the pressure??

Thanks
Tim