GraHal – are you suggesting using the same average periods but on two different time frames. Longer time frame for entry and shorter time frame for exit? If so then 120 hours is 1440 x  5 minute bars and 5 hours is 60 x 5 minute bars so you could just plot 1440, 60, 120 and 5 period averages on a 5 minute chart and see how it works out.

I generally find that sometimes an average combination is in tune with the market cycles and other times it is completely out which is why I don’t use them.