Seller refunded funds, I hate these kind of transactions. It's more than what I thought I was going to get back. I have another RS that started smoking as soon we plug it to a lipo and the switch was in off position. No, it wasn't plugged in backwards. It lasted about 6 months and was used about twice a month. Can dirt cause it to short out? I also get 1,2,6,7 leds and links with hotwire after smoking. Our novaks are still running after many years of service, granted they have no timing. We don't push our timing due not being able to keep buying electronics and motors. I was told to buy LRP for stock classes.