My method is based on deep retracements with overall trend of being up and use weekly data, I never trail my stops after I get a nickel beyond breakeven stops. All my back testing shows trailing stops hurt overall profits. Longer I have traded stocks, for longer term systems, where you get in matters much less than I use to think, being the case, why not just enter at a SMA?
I use options and debit spreads instead of stops. I generally trade stocks but also like SPY and couple other ETFs cause of heavier option volume of selling options around my Long ETF or stock positions.
I do sell short stocks/ETFs but only on Non dividend stocks, but my entries have to be more precise since overall market is in Bull run.
Thank you, I must research this further for the instruments I trade.