Trading the equity curve

This idea might seem a bit left field but I would be interested in people's thoughts.

Find any systems that has prolonged losing and wining steaks (a smooth and trending zig zag equity curve). When the profit turns down reverse the signals. The system itself is irrelevant providing spreads do not account for the majority of losing trades.

The idea is to profit from the changing nature of markets. So long as the system continues to succeed and fail in streaks you are doing OK.

If any of your 'failed systems' generates this type of equity curve you may have something after all.

It is a common misconception in trading that a bad system can be made better by reversing the signals. If this myth were true, every bad system could be converted into a winning system by changing the order of trades. Since there are relatively few consistently winning systems the assumption of trade reversal to fortune can not be true.

It's easy enough to try yourself. Writing a bad system is mindless. Reverse the signals and see what happens.

if a system fails just because it has a bad entry, then you might be right.
Most systems fail because they have bad exit strategy (VERY IMPORTANT), bad MM, don't handle news, etc...

This is only partly true. I have found that what kills most mechanical systems is the commission.