Anybody else with an FS2000 try removing one of the 2 Trigger Springs from the rear of the Trigger Pack in order to lighten the Trigger Pull Weight? I did it based on some positive US forum reports and boy, did it ever make a difference! It brought my Pull Weight down from 9 lbs 4 Oz to 5 lbs 8 oz (average over 5 pulls). My Trigger Pull Weight is not only lighter, the let-off is somewhat more predictable and controllable (stacking).
I am in email contact with a US Gentleman who makes custom FS2000 Trigger Springs which will apparently bring the Trigger Pull Weight down to a repeatable and predictable 4.5 lb pull. I should have a set of his replacement Trigger Springs in-hand within the next few weeks. Until then, the Spring removall trick seems to work very well, with no indication of misalignment due to stacking on one side and not the other. So far, so fine.....
I am also in touch with another American Fellow who still makes the replacement Aluminim Charging Handles, which are a critical spare part for the FS 2000 as they can easily break if mistakenly "HK Slapped" rather than gently released to fly forwards under Operating Spring tension.
Feel free to PM me if you are in need of the Custom Trigger Springs or an Aluminum Charging Handle and I will put you in touch with the applicable US resource. The FS2000 ceased production in 2014 and was a rare bird to begin with in Canada, so spare parts are in extremely short supply and all are located Stateside.