Our -300s were round dial with no speed tape, and were flown alongside the -500s when the NG's came online in the mid 90's necessitating the 6 pack setup we currently enjoy. The plan was to reconfigure to the ND display upon parking the last -300 a couple years ago but I guess other other things have gotten in the way. If we hafta start using the lower DU,where will we put the PDC and ATIS??? I kid, I kid. Can't wait to get an airspeed indicator that doesn't require me to hunch over the yoke to see anything smaller than a 30 knot spread!