Humm, Cladding seems to be the order of the day then
![Neutral :|](./images/smilies/icon_neutral.gif)
![Very Happy :D](./images/smilies/icon_biggrin.gif)
I guessing the batteries were bit weak on the slide rule when they measured up for Chieftain back in the day (2019)
![Laughing :lol:](./images/smilies/icon_lol.gif)
Have you got any sizes or is it the Mk1 eyeball and a rule of thumb (may have a problem there)
![Mr. Green :mrgreen:](./images/smilies/icon_mrgreen.gif)