As a mechanic i have one job i really really really hate and refuse to do and thats brake pipes!! The mot history states that it was starting to suffer from corroded brake pipes BUT this years mot stated it has been so heavily undersealed that it was difficult to asses. Spoke to the owner and he said to his knowlage the pipes have not been replaced. Thats me out. It may be trivial but just the way i am. Just incase you think im a bad car mechanic i fix cranes that have rubber not copper brake pipes that i dont mind doing!