Some people are wondering about battery types and wiring and all the variables.
I use 12AWG wire throughout my builds. From the pack mains through the deck and all the way to the stator windings is 12awg with the exception of the focbox phase tails which are 14 awg i think. I think that probably makes some difference. I’ve never had very good luck with those shitty phase leads that usually comes on motors. A good hard regen down a fast hill will melt those things.
I also try to keep the distance between the battery and focboxes at a minimum. The way i build my decks means i have long sensor and phase leads, however. I’m not sure how that affects things, but it doesn’t seem to have a negative effect if it does.
BLDC v FOC is kind of a personal choice. BLDC will give you a higher top end speed than FOC, but FOC gives you a level of polish you can’t get with BLDC. And when all the extra top end is over 35mph anyway… i mean most people really don’t care to go that fast.