Quoted:
My memory is a bit blurred on which manufacturers have done this, but I think Kimber is one that did use a full length guide rod in their compact versions of the 1911. On the reviews I have read on the topic (can't remember if I've read this specificly about Kimber or not) a tool is needed for normal field stripping, since you can't just turn the barrel bushing to take the compression off the recoil spring. If I recall correctly (never tried it myself on a model that had a full length guide rod), taking it apart can be done by fighting the spring and moving the slide to the point where you can pull the slide catch, but putting it back together is a bit more trouble.
Actually, Springfield has a FLGR in their 1911 Micro model. Yes, it can be a bitch to get the rod out & they did in fact include a handy little plastic hald-moon device that clipped onto the rod to keep the spring compressed. But after a couple of times with mine, I no longer used the plastic device & easily slipped out the guide rod over the bbl foot. No clue if the Kimber is like this as I've never taken one of them down.
Seems like Kimber has a hole in their FLGR to allow a paper clip to slip thru in order to keep the spring compressed? Or am I thinking of another model?