Yeah it occurred to me that a global ~100a fuse would be useless, since the chances of every motor in the thing stalling and reaching more than the fuse's rating are pretty low. Also suppose only the motors on the left side stall and due to some act of God reach 40a between them, the main fuse wouldn't blow and the ESC would be at risk.

I think I'll get a 40a fuse for each side, then just as you say, make up a removable link from deans.

If I mounted a decent sized heatsink on each Electronize, would that increase their amp rating?

Thanks.