Trying to get this Slim Adjustable to adjust and it's giving me problems. The adjuster barrel ring moves from 1-9 and 9-1 no problem. However, the plate isn't moving like it's supposed to. Last night, I soaked it in hot, soapy water for ~30 minutes, scrubbed it with a toothbrush, and gave it a good alcohol bath. The barrel moves smoothly, and clicks in every position, but I can't get the plate to move. I've looked close and even put a blade in to see if maybe my eyes couldn't see it moving. But it looks like it's stuck in the 9 position as it looks pretty far up with a blade in it. Need some expert advice.