My NEW romic shock is making a sucking/hissing type sound. I can't tell if it's happening on the compression or the rebound stroke. It wont do it just riding around in the parking lot, I have to be going fast on technical, rocky terrain. I've tried adjusting the preload, compression and rebound but nothing seems to help. I'm running a 700lb spring and it's set up in the 6" travel setting. I'm also a pretty big dude at 6' 2" 215lbs. Is there something wrong with it, or is this just one of those annoying sounds that an "active" shock like a romic is going to make?