I'd love to disparage averaging down, if it weren't partly a side-effect of a risk management model 
Be very careful about using it as a vehicle for surplus income though, as it's the very opposite of what you're looking for in a trade. Only proper backtesting can tell you more about it really.
Be very careful about using it as a vehicle for surplus income though, as it's the very opposite of what you're looking for in a trade. Only proper backtesting can tell you more about it really.