Just used the hv85 on an A60 this morning. It wasn't pretty. With the newest software got so much squealing, motor cut out 3 times. Had to cut the high throttle atv down to 50% to get rid of the squealing, then didn't have much power. Tried several different timing settings, throttle settings, I wasn't able to get it to work. Thinking of trying previous software, used the 1.52 which was supposed to fix outrunner problems.