I took my 22 out this morning and shot a little IPSC with it. The extractor was not fully pulling the case out of the chamber every once in awhile. I looked at it and about a forth of the tooth is chipped away on the bottom. I called GLOCK the other day to have them check the serial number for the production date. I was told that my 22 was eligible for an upgrade service. Im thinking about going ahead and sending it off to them for the upgrade. Should I do it or just get a new extractor and do it myself? What do ya'll think?