For those scratching their head as to why I would want to do this...
I have different departure thresholds depending on the markets direction. I want my cake and eat it too.
i.e.
Falling Sell = If recession fears or bad news makes the stocks plummet then my exit strategy is to lose a maximum of 5% from where it sits now, but still happy to hold for another week or three - even if it only hovers around a % above or below. Maximising opportunity time.
Trailing Sell = If the stock prices climb prior to going ex-divi or other good news then I will take any further profits and exit at 2% below the future highs.
The difference between 5% down from present to 2% down in the future could be significant. (Though not enough to be in error by 50,000 shares)