I came across your video on the Alfa the other day... it's really good.
Well done!
I liked the way you de-tensioned the spring by moving the hammer.
I had spotted it but the spring loaded hand plunger built into the side plate (that needs to be held back) would be easy to miss.
I tuned the trigger pull on my Alfa and reduced the mainspring power... it is now much better that when I got it.
Given ther is no Herco around, a load video / accuracy report would be really welcomed.
Best loas so far is 4.5 grains of Blue dot with H&N 148 Gold HBWC bullet, but more work to be done.