I just did my first trigger and it happened to be on my Rem 270 ADL, but only after researching it online. I was fortunate to find a good walk through with pictures. I did not mess with any of the springs, just the adjustment, and polishing. It reduced my groups on factory ammunition by almost .750 @ 100 yards.
http://www.homegunsmith.com/archive/T21030.html
I want to say my ADL is from around the same year.