Hi Guys
The scales are calibrated at six monthly intervals the end of every January and July and were last calibrated around mid January 2017, I can look out the calibration certificate when I am back in the shop on Monday if you like.
My trunk was virtually empty only containing a few essentials (warning triangle, first aid kit, bulb kit and hi-vis jackets) for when I travel to Europe and I admit my scales do round to the nearest 10kg, the Marauder weighed in at 2180kg, I used the approximation of 2.2lbs per Kilogram
If you want a more accurate conversion taking into account my scales rounding to the nearest 10kg my Marauder would be 4784 - 4828lbs
Regards
Dereck