Castles website stills says the Pheonix HV controllers are comming soon. They list three versions, the 45, 85, and 110.
I believe all the Pheonix controllers have brake capability but this is not a requirement for my MT application.
If these controllers can handle 50v then we're looking around 40 cells or atleast a 12s lipo. I just hope the RPM limit is atleast 65k.