I took the time to finish my trigger and eliminated the overtravel. Here's how I did my trigger job.
Please be aware that I'm not responsible for anything if you damage your gun if you decide to modify it as shown here. This is not a how to guide. If you're not confident take it to a gunsmith.
I started with 600 grit sandpaper and worked my way to 2000 on the sear and striker contact surfaces. This got me a mirror finish and a very smooth 2nd stage. I also trimmed the sear from the top to shorten the second stage travel.
The sear and striker must have positive engagement. This is very important for safety. The way to test for it is to put pressure on the striker while slowly pulling the trigger and observing striker travel.
If the striker travels back you have positive engagement and you're good. If it stays still it's neutral engagement which is ok too (but positive is better). If it travels forward it has negative engagement and is unsafe.
To eliminate overtravel I drilled in the back of the trigger and soldered in a piece round welding rod. Trimmed and filed it down until the trigger stops right after it releases the striker.
The over travel adjustment isn't actually adjustable but it doesn't need to be. Once it's initially set you won't need to adjust it.
It was a fun project and helped shrink my groups a bit.
I hope this helps you get a better idea of what's involved in a trigger job.