I did the four leaf clover 200, which starts at a village hall, and does three loops each ending back at the same hall.
Intermediate controls were all infos....
Initially I thought it would be daft, but actually, with excellent full time 'W I' style catering there every time you called in, it was pretty damned good.....
The MP, with a bag drop to the central point, and sleep facilities there, sounds as if it might do the same job, only better, with showers and clothing changes as well...