Hello - I just picked up a Springfield Armory 9mm stainless Loaded and I am a bit unsure how to strip it down. I have a Kimber .45, and to field-strip that one, you simply push in on the guide rod, then rotate the barrel bushing. The SA has an Allen wrench hole in the guide rod, and the manual isn't really clear what to do. Do I turn the guide rod with the Allen wrench in a particular direction, etc. Any advice would be appreciated. Thanks.