Reducing FO cost won't make much of a dent...the airlines REALLY want to get rid of any and all six-figure regional CA's (or anyone over about $50K).
If that's you, you only still have a job because they haven't quite figured out how to dispose of you yet...but they are sure working on it, while you're reading USA Today in cruise flight, an entire team of MBA's is plotting to eliminate your position and re-bid it to a 24 y/o who's willing to live in a van down by the river.