Sorry for getting so snippy, but this issue has me frustrated to no end and you were telling me things about the MMX that just aren't true. 2S is fine. Castle knows I'm running 2S.

I've tried changing startup power and timing. Nothing changes the cogging.

I have another sensored ESC, but I'll have to change the connectors and I haven't gotten there yet.

Castle sent me a new sensor harness, but it's not supposed to be here Friday. I'm more than annoyed that, despite all of the BS I've been through with their products, they do not send things to me in a more expedited fashion. They don't seem to be in a hurry to get this fixed like I am.