Hi kab,
I went to see Don Powell (Slade's drummer) Live at the Slade Rooms, Wolverhampton (of all places) on Friday, 18th. October '19. The reason I mentioned it, is simply because during a Q & A session, a member of the audience asked Don what his favourite (and worst) gigs were. Don replied that the Great Western Express Festival in Lincolnshire actually WAS his all-time favourite Slade gig..yes the same one you were at!
I saw these at the Great Western Express Festival in Lincolnshire in May 1972. I wasn't really a Slade fan back then......but.... they showed many of the other acts how to really rock. fantastic performance. The festival was a real mudbath as it didn't stop raining. and the security was brutal (so called Hells Angels I seem to remember)
I bought tickets for me and my boys for a gig that was arranged in Bangor University around Christmas time in the early 1980's. We were queuing up with all the others when it was announced that Slade would not be appearing. It subsequently transpired that THAT single had been released again and they had been invited onto Top of the Pops - No contest. What a bummer !!!!