At both the regionals I worked for, the compensation for CP was in the six figures.

As far as check airman goes, it's usually an hourly override on top his normal rate. $15/18/20 an hour depending on the company.

If you ask some guys, it's simply not enough for some of the grief they go through doing what can be a very difficult job. Not only for flying with new hires/new CA's etc, but sometimes they become scheduling's whipping boy. They may start a trip, then get reassinged because somebody may need some additional OE, or need to have a line check done. Shortening his already short overnight, or extending him past his original release time and affecting his QOL.