Thank you Iowegan.
Thank you blackvoid. No the gun has factory springs in it.
The gun had a light fluff and buff, and put back together for dry firing. This is how I usually break in my ruger revolvers.
When I received the gun, I took it apart, cleaned some burrs with light sandpaper, ran a drill bit very cautiously thru the trigger return tunnel, soaked the trigger assembly in gun cleaner, also deburred the hammer strut. Then I very lightly oiled the trigger mechanism and hammer strut . This smoothed the action up pretty well, except for the sticking trigger. I usually don't try lighter springs until dry firing 4 or 5 hundred times, and running at least 100 rounds down range.
I guess I need to get my big baggie out , and disassemble this trigger assembly to get a good look at the plunger. I just really hate the springs and plunger part of this job.