I took full no claims to a trade policy for my work striping minis. But after 7 years being on a trade policy. I wanted to go back to personal one and you lose them all and don't get them back. Insurance company's had to run me through as a first time car policy again. With no no CLaims.
Wish I knew this before I took it out as I would of had to policy's at the same time. Would of saved me a fortune