Ok, here is how you adjust extractor tension. It is so simple, you are going to slap yourself in the forehead and claim "Coulda had a V8"...
Take your slide off and remove the firing pin stop from the rear of the slide. Now, pull the extractor half way out of the extractor channel from the rear. Stop. Now, gently bend the rear of the extractor outward (To your left if the slide is being held right side up and facing forward) to "open" the hook on the extractor. Now, put it back together and see if the round is a bit "looser" in the extractor hook. If not, gently bend it again... and so on and so forth. Just remember, a little bit of pressure goes a long way when talking extractor tension. If you over do it and the hook will no longer hold a live round in place, bend it slightly the opposite direction to "Close" the hook.
To check for proper tension, grab a live round and place it in the extractor where it would normally sit on the breech face. Now, roll the slide over and back right side up. Did the round fall out? If so it is too loose. If the round sat perfectly still and did not budge the extractor is too tight. The round should just barely wiggle back and forth while in the extractor hook until you shake the slide fairly aggressively.
This should solve your problem. If not, inquire how to shape the face of the extractor.
Now that I have you completely confused instead of just slightly confused... it is time to tell you that I am in no way a gunsmith but I did stay in a holiday inn a couple months back.
