Nothing says comradery on the railroad likes a pair of engineers giving one another a wave as they race past each other somewhere secluded. Such is the case this warm, summer afternoon at Waldorf as the engineer of Amtrak 1790 gives a "hang loose" sign from the cab window of the AMTK 507 as he meets the northbound Coast Starlight, which has just taken the siding, and receives a wave in return. Furthermore, for those curious how I obtained this unique angle, I must give thanks to the rear-platform of the private car, "Tioga Pass" making the round trip to San Luis Obispo and return on this day with other LARail.com private cars.