Quote from thomas_spinner:
I wonder what kind of money management can be applied to this type of strategy, i.e. time exits rather than specific price targets.
-thomas
First of all you start trading a system like that when it is experiencing a significant drawdown, but before you do even that you may want to do a Monte Carlo analysis to see what kind of drawdowns to expect. The past drawdowns can serve as some indication too. The MC analysis is widely used in these kind of problems and you will easily find pertinent resources on the web.