It sounds like you are doing everything right. If you inhale and it taste like crap thats a good sign you burned it. Usually you will also see some black if it burned and it will smell. It should be brown after its kicked and. I suggested playing with the temperature a bit. Start off low and find the point where you start to get signifigant hits. I did that with my vapor brothers and decided that putting the dial past noon would result in easy burning.