OK Anavar alone will do you no good bro. The goal you are trying to reach should be fairly easy to obtain naturally. Sounds like your a pretty active person which leads me to believe your diet might not be all that great. You are risking some nasty side effects at 20% bf. You need to drop to 15% or lower befor you run any form of gear. Head over to the diet section and do some research. Ones you got your diet in check you will be surprised at how fast you drop bf.