[wilf leek]

It makes one feel all warm inside to see the breadth of original thinking that can be witnessed here at CC most days.

Well done Frank. My hat, as well as Turk's, is tipped in admiration .
BTW - the concept of pulling a large trailer has some additional benefits - being able to hold wide throttle openings for data acquisition for longer, since road speed would not increase!
Breath-takingly simple - all the best ideas are.