Describe what you mean by the "trigger job" you did.
Normally to get rid of creep, you need to take the hammer notch down to around 0.015". You can take this measurement using automotive feeler gauges. You can't do reduce the notch freehand as you have to keep the angles the same. You'll nee a diamond stone and a way to keep the angles the same. I use a vice and a small magnetic level attached to the diamond stone as a jig. I don't think I've ever handled a NM SA Ruger that had a decent factory trigger (and that's putting it nicely). However, most NM SA Rugers can be essentially creep free, if you know what you're doing. I've done a few that still had a hint of creep, but most it's inperceptable. Make sure you are comfortable with what you're doing before you start. If not, have a gunsmith do it for you.