Yeah...you're right Mick...I've been 'playing' with them all.
This morning I set the update to 1 and set the course control to 50.
Correction control set to 1 also so it stopped updating as it greyed out the cell.
I still don't understand what's going on.
My VE was pretty much dialled in via the RTACS AutoVE process.
As soon as I engage trims it heads lean...badly lean!
But...I've always thought I'm running too rich.
I'll climb under the Burb over the weekend and see if I have any exhaust leaks or anything...although....I expect that'd make it run rich?

Yeah Chalky...we're 'those' people. Lol!