I never use them for long term or day trading. Long term they stay at breakeven, sometimes 4.5 years been the longest, and in day trading, once I get to breakeven plus a tick, either make target, get out on market stalling or hits stops. All my testing shows I miss out hugely long term with trailing stops and in day trading ES, too often cheat myself out of ticks. I find I get lazy and waiting for stops to hit then just taking more.