The problem: with 0.5% risk per trade, 2% means four full losses. For many traders the third loss is already trading badly, and the fourth trade is usually the worst of the day.
An alternative is a count: two full losses and you stop. Small losses from time stops or scratches don't count, only trades that hit the full stop.
How to check what it would have done, from your journal:
- Find every day with a third or fourth full loss.
- Remove all trades after the second full loss, including any winners.
- Compare the average losing day and the total, before and after.
The count often works better because it tracks your state of mind, not a number on a screen. Two full stops in a row is a clear signal; 1.3% down isn't.
Does anyone use a count of losses rather than a money limit? Do you count partial losses?