A 4.5# FPS and a minus connector alone should have reduced your trigger pull weight to approximately 4# which is considered light for a Carry Pistol.
What I do depends on what the owner wants and how the pistol is going to be used. Range Only or Carry.
Some just want a smoother trigger with a slightly reduced pull weight. Polishing all trigger components improves this feel.
For Professional advise talk to someone like Charlie Vanek or Johnny Glocks. Both will talk to you and give you solid advise.