I was referring more to something to support smaller brushless motors, like the NEO550 (MiniNEO), which is right around the size the hobby market focuses on price optimizing. I’d also be very wary of putting some of the less expensive controllers into a drivetrain, but $75 for the SparkMAX looks a little bit silly to run an estimated 200w motor.
Some do claim to be rated to 100A burst, but RC and FRC “burst” current situations can be very different. The main issue with taking something from the hobby market is converting the marketing speak into FRC terminology and confirming with more rigorous testing. Even with this, I don’t see how a $30 sensorless controller for the NEO550 and similar couldn’t happen. AM seems like they would be the most likely to make this work between HQ and testing, and they don’t have their own brushless product currently.