When you talk about Delta fast upgrades keep in mind that's at LGA/JFK domicile. Unless you live within driving distance you'll be commuting. My neighbor does this from CLT and it's actually not bad because he got a line on the A320 so quickly and many trips he can get are commutable. Plus his wife can pickup and drop him off at CLT so that saves time. But a junior Captain will be on reserve for a long time and commuting to reserve isn't fun. For all the bad things about NetJets at least they don't have reserve or commuting.