I do know what I'm talking about...

ORD is junior for CRJ CA at SKW.

CRJ CA has varied at SKW, but is about 3-4 years lately.

Mesa ERJ goes pretty quick, at about 2 years (occasionally less), but the CRJ is more like 3-4 (An ERJ upgrade locks you into the ERJ bases for 3 years: MCO or IAD)

Things are not going well at mesa from my experience, I would not plan on long term growth. Also the captains at mesa do not seem to move, so if growth stops, upgrade will stop.