Really not much work that can be done to the trigger. Perhaps the trigger bar might have been polished or a rough spot smoothed out. If it's working, I'd not be too concerned about it.
Doesn't sound like it's hardly broke in. Have fun with it.
In Memory of Paul "Dietrich" Stines.
Dad: Say something nice to your cousin Shirley
Dietrich: For a fat girl you sure don't sweat much.
Cue sound of Head slap.
RIP Muggsy & TMan
"If you are a warrior legally authorized to carry a weapon and you step outside without that weapon, then you become a sheep, pretending that JOCKO will not come today."