EGW parts are as good as any. They build competition guns that see ten thousand or more rounds per year, so the parts have to be tough. I have one of their slide stops, a front sight custom-made to fit an oddball dovetail, and their firing pin stops reside in almost all of my 1911s.
Have an EGW Sear inbound for the EMC Wide Spur Hammer in my Springy GI.45.
The EMC Hammer is first class, finished well, and all angles and checkering are sharp. It was a perfect drop-in for me, and I am looking forward to see how it plays with the EGW Match sear out of the box.
I'll let you know how the fit together.
The Hammer-Sear fit works fine out of the box. With the factory-prepped Springfield Sear, the Hammer=Trigger feel was great.
With the out of the box EGW sear and same hammer...it felt gritty. I have it back to my 'Smith for a real action job. I suspect the EGW seer drops in fine, but needs some hand-finishing to provide a smooth as glass, quality trigger job.
Again, I am learning there's no such thing as "drop-in".