I came accross this interesting article about the above incident, which may interest the readers of this sub-forum. Little Rissington is a hard to deny occurence that happened during a time of many really good sightings and in particular the same period as the mainbrace/topcliffe sightings which are also hard to discount. I had a quick search around the forum to see if I am repeating something but I do not think I am.
http://www.drdavidclarke.co.uk/LRiss.htm
http://www.drdavidclarke.co.uk/LRiss.htm