Ok. Considering either ATL or JFK connection. JFK would be FCO-JFK, then onwards domestically. Looking at things, looks like FCO lands almost always in B. Onward flight has mostly been leaving from A, with occasional B. 2:10 connection time, late summer. We'll have bags, we're Global Entry, Clear, yada yada. Reasonable timing? There are several flights after our connection, but they're regionals and almost always full....