Can anyone (Norman E. Johnson are you out there?) help me with adjusting the Remington 40XB trigger? I have (currently) six Remington 40XB's that five of which need the trigger adjusted for pull weight. I have checked with three local gunsmiths and all of them want to adjust all three screws. In the booklet that comes with the rifle, two of the screws are listed as "factory adjustment" only. Should I let one of the 'smiths adjust these rifles or is it simple enough that I could do the adjusting myself?