66620 passes the site of Ashbury Crossing, Shrivenham, on 26 February 2022 with the 6B91 12:25 Hayes & Harlington to East Usk Yard stone empties. As is often the case, this had left very early, 147 minutes early in this case, but it then sat in Hanwell Bridge Loop until the right time. After Didcot it started getting ahead of time again, and passed me running 54 minutes early.