I'd buy the IAM BS theory...total conjecture here, but it seems like maybe the PMDAL jets are getting worse treatment than the PMNWA jets in DTW. On the 75 I haven't had any trouble with the ground crews in DTW lately. (Maybe they can't tell the difference between the 75 fleets?) Of course my sample size is pretty small... seems like all my trips only begin and end in DTW. I spend more time in ATL than DTW these days