I'm not familiar with Rough Country's coils as far as settling, but any good quality coil should be fully pre-set & stress-relieved at the factory (this means fully compressing it until the windings are against each other so that there's no further settling when they are put into service). Skyjacker I know does this.
I would say try to find a dip somewhere (dip at an empty intersection or offroad whoop-de-doos, etc.) and hit it fast enough so that you can feel the front suspension noticeably hit bottom (not slamming it, but enough for you to feel the suspension is making contact with the bumpstops). After that point I would think the coils should be settled in enough that they shouldn't sag further and you can align it.