I have not Contacted hobbyking. I thought I would try here first.
I'm using a dx3e.
Yes it is brushless.
I believe it is an 8 pole motor. I can't remember, but I did check to be sure it's not a 4.
Here is a link to the esc.
https://www.hobbyking.com/hobbyking/...9PuhoCPXzw_wcB