Thanks everyone for all the excellent info and suggestions. I'm distracted by one of my other hobby projects at the mo', but will soon be back onto the scope "project" to sort out my firmware following AndrewJ's inputs, then do training etc.
Using a spirit level sounds sensible too. I reckon that would be done along the horizontal direction between the forks (i.e. E-W when OTA facing N)
I'm sure I'll have more questions so not doubt soon i'll be back here with more queries .... knowledge is power!
