Hobbywing 150A Ezrun esc review

[truggyracer1]

ok tried to hook a fan/heatsink on the motor and the fan tap didn't work worked fine when i plugged it into the batt spot on the RX its a turnigy fan but didn't think that mattered? i had a medusa 36-70-2300 but i fried it last week i tried to change timing went from 15 degrees all the way down to 7.5 didn't change it much at all i had cogging and the breaks were fading on it do i have a issue with my ESC?? i'm going to to try it with a castle/new 1518 1y 1800kv what should the motor timing be on 0?