Check and Use Your Trailer Brake

beefy4605:
Said it before and I’ll say it again
Suzie rails / MAVIS rails whatever you want to call them mean there is no need to be split coupling trailers , no need to be up on a catwalk between a trailer and the cab .
Split coupling is dangerous and has to many chances / oppertunities for it to go wrong. But it costs money say the companies . I say £1.5 million would fit a lot of MAVIS rails and everyone gets to go home .

Aren’t tufnells mainly wag n drag? Do Mavis rails work with them? Sounds to me like a trailer brake wasnt applied.