Can we have some more pictures please ?
Fifferent angles, further along box sections....
If box section hit with a suitable bit of 3 X 2, or a small hammer, not the pathetic thing vosa say to use, is any ratteling heard ?
Internal rust *landing* due to hammer strike, usually with a dull thud....
On good solid steel, small hammer will *bounce off*, less good steel, bounce off less so, poor steel deform, corroded steel rattle, rotten steel hammer just goes thru...
The day will come when a special instrument will be used to measure steel thickness, and tester will be wearing a cam....
Eventually mot testing for cars/light vans will be government/vosa performed, not by private enterprise with all the associated "fraud".....