I made an improved trigger 40 years ago. I did this because I broke the original and tried to buy a new one, the one I bought was a cast iron piece of junk. Today I would have tried you Huber unit or bought an original from the guys here. Compared with the shop time of building one from scratch $100.00 for a Huber would have been a bargain.
Since no one here has used one of these maybe you could do the trials and tell us what you learn. Perhaps the Huber unit would be great for sporters, and free up a lot of original units for restoration projects.