"Alastair Holmes" wrote in message
...

They managed run-rounds easily enough at Amersham in 1982 when Sarah
Siddons did a few tours. Uxbridge station was the problem - it ran to
Uxbridge sidings instead, with passengers, to perform the runround
instead.

Not even necessary now. With the 4-TC/3-TC units it can work in push/pull
mode, as it did a few years ago when it worked Baker Street to Uxbridge
services (off peak) vice an A60/62.