On my way to the Weald of Kent Rally, I spent Friday afternoon at South Cerney:
http://www.internationalsteam.co.uk/.../ukindex19.htm
Almost all the engines were on site and there was plenty of movement, with three saw benches.
However, the weather wasn't very friendly, it didn't matter as I checked what was present, but there was no more than an hour of quite good sunshine later by which time there was less movement. As such the pictures are a mixed bag.