These railfanning days began as an attempt to catch UP 1996, the Southern Pacific heritage SD70ACe, at Martinez. While I failed to catch 1996 there due to work, I was given a second chance the next day when I finally caught 1996 on the Oakland to Stockton intermodal shuttle (IOAST-05) at Pleasanton...and in the lead position! This marks the last UP heritage ACe I needed to catch before being able to say I've caught them all! This was all followed up with a trip to Maltby along BNSF's Stockton Subdivision to intercept a CSX SD70MAC leading an autorack train to Richmond. While I failed to catch that train, I was instead surprised by an eastbound empty autorack train led by Tier 4-compliant ET44C4, BNSF 3970!