And, as long as the triggerguard was off, I installed a new bolt/trigger spring. The old one was rusty and this is supposed to be one of the low power ones that won't peen up the cylinder as much.
But in looking at the two, the only noticeable difference is that the new one is flat on the trigger side.
And after installation, I really can't tell any difference. I still had to back off the screw a little over a half turn to get it to sound like it engaged solidly, but didn't "slap" the cylinder. I guess it is a lower power spring, but only time will tell.