The garage I used to use were honest about the test, but for regulars would test the car before logging into the computer. If it passed they logged on for the appropriate time and you got your MOT, if not they didn’t record a fail.
Is there any reason the clutch would slip apart from wear? I saw something about auto adjusters sticking on the piston heads site but can’t find it anywhere else. The clutch was new about this time last year.
I’ve got. Yamaha app on my phone that records lean angles. I haven’t used it yet but some of the posts I’ve seen on a Facebook Yamaha page are scary- some people are way more skilled than I am!
Did you try Tow Trust? I reckon this would fit their couplings: https://tow-trust.s3.amazonaws.com/instructions/TCH2.pdf
Couplings: https://www.tow-trust.co.uk/towbars/accessories/height_couplings