Can this problem manifest itself in the opposite manner? In other words, the pawls sticking in the engaged position rather than the dis-engaged position? While I was riding on Sunday the cassette on my bike wanted to continue to turn with the wheel even when I wasn't pedaling. It was enough that it would turn the cranks if I took my feet off the pedals, but not so much that it wouldn't free wheel (with a little added resistance) when I held the cranks stationary. I took the wheel off and cleaned it up and the more I cleaned it, the better it worked. It still feels a little "sticky" but it's 100 times better.