I like that PAS magnet that mounts to the crank arm. In doing kit conversions, more of them than I have fingers to count. the PAS sensor and magnet were often a pain. I never had a bike where I could fit the round metal bracket on the BB. I typically fashioned my own bracket for the sensor. Then I bought the all-in-one integrated PAS sensor. Didn't have enough gap between the BB and the pedal arms. The arms would crash the sensor and not be able to turn. On some bikes, I had to gut the inside of the magnet ring and attach it to the crank gear,
It's all in a days work for a DYI guy, but bamboozles a lot of newbie kit builders, including the SWYTCH customers. That shows initiative to fix things for them.