I don’t remember Johnny ever playing with Diz - especially at the Pynton club in the 70s. Johnny generally played with Dave Moses on Bass.

The only times I can remember Diz, he was either with Lonnie Donegan or Steve Benbow. I did see him once with Stephane Grapelli and I have a vague recolection of him playing witha larger band - might have been the Temperance Seven but probably not.

I expect Tony Rees in OZ would know - I’ll ask him.