Tyre fitters are on pretty poor money and always have been, its abot of a ■■■■■ job, all weathers, hard manual labour, buggers their knees and back up.
This is why they tend to have creative means to make up the shortfall!
Many would dream to be on what truck drivers earn.
Bandvulcs at 4/5mm are a liability.
If you run them to low and shag them the carcass is then worthless
Dont forget 30 of not a lot still equals not a lot.