JungleBus,
Good catch. No, it looks like just 3 are ATL based. Most are NYC.
However, I know some NYC F/Os are getting OE in ATL.
Yes, you may use it at the roadshow today. Perhaps someone can check how many NYC F/Os are getting OE in ATL? Or, you could combine DTW, NYC and ATL to calculate a 717 fleet reduction in REG line holders.
Additionally, I just posted a correction to my estimate of cost savings to Delta.