4pip
Forgive me for not being entirely au fait with your methodology, but there's one thing I've never quite understood about these "hold 'til they come good" strategies. Forgive me again if that's not quite describing your strategy.
I presume that your method gives you an indication of whether you should trade long or short - let's assume long.
So you enter long and the trade goes against you, which is all well and good while your method continues to tell you that long is the place to be. However, with the sort of drawdowns you are talking about, it surely can't be long before your method starts telling you that you should be short - and the more sensitive your method the quicker that point will arrive. So, by hanging on to the long trade, you find yourself in a position that you must ignore your method - in which you have great confidence - which seems contradictory.
Is this a scenario that arises?
cheers
jon