I have just installed all the MCARBO Upgrades to my Sub 2000 Gen 2.
Watching thenVideo , Chris said he got the trigger pull down from 9 lb to 5 lb. That is great.
What I did is to also Polish the Hammer and Sear Mating areas which removed the Tool Marks!
I started with 8 lb - 3 oz trigger (Tested 4 times) down to a 3 lb - 10 oz trigger (tested 6 times).
These are not averages.
If you feel comfortable on working on the triggers, I highly recommend polishing the hammer and sear.
Unfortunately, my reset started at .180" and it remains at .180".
If anyone has an idea on how to reduce the Reset please HELP!
Safe Shooting and Have Fun.