I will be interested in trading the VIX front month future upon seeing what I perceive as extreme levels in the VIX, indicating imminent mean reversion. However, I know there are some specific factors to recognize before doing this, for example contango/backwardation and the fact that the VIX future does not track the underlying index exactly. What I *don't* fully know is *how big* impact these factors will have on my trading results? On average, how expensive do you think it will be for me to roll over VIX futures contracts between months? Does the roll-over-cost eat away all chances of having a profitable trading strategy? How much harder is it to make money trading VIX futures compared to the regular VIX index itself, if it was tradable?