Yes, I understand that Earl's can "significantly" lighten your SA/DA trigger pull. Night sights (Trijicon, Mepros and Earl's own designs) are also available. A Sprinco recoil reducer is a reasonable gadget, but I'd prioritize 15-16 round high-cap (OK, std cap) magazines higher. Rock on!
i changed my striker spring down to a 4# Wolff spring for a Glock. brought the SA down to about 3#, have only had a few FTF's using S&B ammo, has been alright with Winchester Value Paks, CCI/Blazer and Gold-Dot's.