John does do plenty of studio work. For Meat and many other artists. I guess it's just a job people get paid for and don't always get credit for.
But yep John answering would be cool

I think i heard somewhere he has plans for a chat at some point soon. So maybe you could join in and ask him yourself
For me John is the best drummer live and in the studio

Infact he's the best full stop
And yes Anji a detour with Renardo would be good