rentz wrote:you sir are a braver man than I.
i havent tried anything on my 1911's for fear of screwing up the fitting, i had a hard enough time filing down sights to fit on an H&K
^^^^^ Wise Man!
There are certain things you can do to 'slick up' a 1911, but I don't recommend anyone mess with the hammer and sear UNLESS you understand exactly how they function, what proper 'mating/engagement' looks like and what the minimum measurements and angles should be.
To attain a 'smoother' trigger pull....a lot of hammers and sears need nothing more than a LIGHT polish, being careful not to change the primary or secondary angles of the sear or shorten the hammer hooks.
Reducing 'creep' (sear engagement) is quite another matter and you really need to know what you are doing or you will ruin parts and/or end up with an unsafe weapon.
It isn't out the realm of a gun owner/tinkerer/home smith, but it DOES involve having an excellent understanding of the relationship of the parts. A steady hand is required, certain tools and techniques are advised and a willingness to make small changes and check them (read reassemble the pistol numerous times).
Andy clearly knows what he is doing (though I'd never do anything before I had my coffee)

, as do others here....but I am certain he would not recommend others do trigger work if you don't know what you are doing.
I don't know what else was done, but Andy removed some 80 Series parts (firing pin block), installed the correct frame slot filler and effectively made the pistol a 70 series. The parts he removed (while safety features) are known to create a little 'slack' in the trigger pull and also friction. No doubt, he ended up with a smoother trigger.