I have a Medesha Two-Stage, and what you have is not that. FYI, the Medesha wasn't what I would call a true two stage where the sear is protected from tripping until you hit the 2nd stage. My trigger remains uninstalled if you'd like to work out a trade.
In full transparency, I didn't find it easy to work with Mr Medesha. He was largely unresponsive and I'm frankly surprised he's still in business.
Hi ChrisF, I found this old Medesha instruction sheet buried in my HighPower stuff today, it was included with rifle documentation when I bought rifle. My trigger however isn't marked with TSM-I etc like the diagram, and I see some other physical differences, so it's certainly possible that isn't what I have.
https://www.24hourcampfire.com/ubbthreads/ubbthreads.php/galleries/18229906#Post18229906 thanks,