Springfield V-12 Trigger

[UT_Air_Assault]

The other day I shot a Colt Gold Cup with an amazing trigger which got me thinking about modifying my Springfield V-12 1911. However when I got to looking closely at my trigger, I realized that there is a small hole in the trigger to stick a tiny Allen wrench through to turn a screw. Thus my questions is, what does this do? Is it an adjustable trigger (never saw it mentioned in the literature) or a disassembly function?
If it isn't an adjustable trigger as I suspect, anyone have any advise on what kind of trigger to drop in?

[carolinaflats]

It probably is an adjustment for the trigger stop to control overtravel. I noticed my new TRP has the same adjustment, but it has very,very little overtravel as it came from Springfield. From what I've heard, the are usually adjusted to be spot-on from the factory in most cases.