This really won't answer your question, but since nobody has responded yet. I haven't used either, never had to. I've had close to a dozen 10-22 s over the years. If it's a true extraction problem and you are not talking about stovepipes, make sure that the extractor slot is clear of any build-up, if you have put enough rounds through it, may be time for a new extractor, although I've put many many thousand rounds through some of mine and haven't worn out an extractor . Cleaning the chamber during the match might prevent this, just a thought. If it is stovepipes that you are talking about, try retensioning the magazine. Tighten the hex nut as tight as you can ( forget the 8 flats or whatever) with your fingers, then the through-bolt tight. Back off the bolt just until you see the rotor move ever so slightly. This will help reliability with feeding and extraction, and more than likely solve any stovepiping problems if that is what is happening.