Thanks Piotr for clarifying the isolation between the 4 separate BMS boards, and I apologise if I have caused any unnecessary worries or confusion.

I was initially concerned that the position of the fuse could potentially cause damage to the BMS, I'm happy now that it can't.

Roo, with the 200A fuse mounted in the middle of the pack you risk damaging part of the BMS if the fuse were to blow under load you would have almost full battery voltage (35 of the 36 cells) applied across one section of the BMS balance connections (module 18 or 19 depending upon which end of the fuse the balance lead is connected to).