I think 24/48 was saying after 6-12 months you have enough experience to adequately perform the duties of a First Officer at a regional or major, not to be a Captain.

I agree with everyone it would make more sense to go from CRJ FO to A320 FO, as opposed to CRJ FO to CRJ Captain to A320 FO. But we'd need flying back at mainline for that. As it stands, it's worked okay so far because upgrade times were usually a few years, now it's often as fast as you can get 1000 121 SIC. I still think an American pilot who upgraded at 1000 hours is safer than a lot of foreign 3rd/2nd world Captains, but we'll see if it creates any problems over the next year or two.