well as a trigger nerd i will say that the trigger is complicated and if the screws are frozen and can't be turned than a new set of problems are at hand i screen shot the trigger assembly to enlarge it
question how the trigger feels to your liking
i lot of time the last owner has done all the heavy lifting and set it up, in what i call good enough
this type of trigger will make changes at a very slow rate and it is like you are at the eye doctor as he flips the lens back and forth
my point is there a perfect or is the good enough okay
i have been there and told myself put the screwdrivers away and shoot the damn gun
so lets take a look
1 and 2 are self explanatory
5 should be close as the trigger over travel stop
11 screwed in would put pressure on the sear and make the trigger have more weight out is lighter
9 i have no clue what it does
and that leaves 3-4-10
i am guessing 3 screwed out will lighten the trigger
and 4 is push the sear up
and 10 i am not sure
never had the pistol and i have to use some logic as to what does what and if i am wrong i wrong
one thing as you know is work one screw at a time and if you move them write down what you have done because where you are at might be where you would always end up
make sure you have good tools that fit the screws or hex and good luck i have done what i can on this one
mike