There’s no problem when being loaded in a quarry because as stated the loader has scales plus weigh bridge etc. It’s when I do muck away off sites with 360s. Most machine drivers look at me gone out when I say no scales mate just load up to the line. Never met one yet who’s not listened but hard to judge clumps of wet clay.
I got refused to tip at one site as I was 200kg over and one of our grab lads had to come out and take a grab load off. Rant over