Having some issues with cogging. I have a mamba max and a Trinity 13.5 Duo. Wondering if anyone has some suggestions. Thanks

You will have some since the motor is really setup for sensored speedos and the Castle is a sensorless design. Not really alot you can do except run Castle motors or any sensorless designed motor. The motors that are designed to run sensored or sensorless won't run as well as a motor setup to be sensorless only speedos.

Do you know of any sensorless 13.5 motors out there that would work with the mamba?

I thought Castle had fixed this problem with the latest firmware.

I have the latest firmware installed. Have tried the other versions also to see if it would make a difference.

I had the same problem with my novak 13.5 when I was using mamba max if you are not about to change your ESC you will have to install a smaller pinion and I was running my belt a little bit loose on my tc5 that will illiminate some of the cogging but not totally even with the updated firmware and direct soldered wires. Either get the sensored ESC or run it the way it is.

GOOD LUCK.