Tested my mamba monster x for the first time today. Used a Tekin T8 1900kv motor un sensored (have to buy a stupid sensor harness) this thing was smooth. No performance complaints. They give you a free castle link coupon thingy. Just add a damn castle link in the box CC.. I lost the stupid coupon. Anyways the data logger filled up quick. A few speed runs and like five times around the track. I don't have the castle link yet so can't disable yet. You can clear the data log. Tx to the brake position then turn on esc, wait about 6 seconds long beep then it is cleared.