A few days ago I poked the RS air shock I have on my fuel with an allen wrench just a bit to let some air out. At first I never sagged when I sat on it, but now it sags 25% and when it compresses, it wont come back up. My friend lent me his frame pump, so I'll be using that here soon. I need a rough estimate to achieve a 15%-20% sag upon sitting. Is something around 120ish psi right? I have no idea. Thanks for helping a newb.