Thanks for that. At the motor hub the connector has 6 pins, 3 bigger pins and 3 smaller ones. Does that limit the choice/availability of controllers?
I think there is a spare Julet connector tucked away under the controller. So I assume that is an unused PAS connector. If I buy an add on PAS sensor does it matter how many magnets - I see some Bafang ones on eBay with 12 magnets?
The Sparticle display does not have any menu or settings except on/off and power level 1 to 8 and 0. The thumb throttle only works on 0. So I don't think I can change settings like number of magnets.