I used to use standard non-guaranteed stops and honestly never found they did not work. However, I got fed up with overnight volatility and widened spreads hitting my stops and these days try to remember to take stops and limit orders off each evening and restore them next morning. Sometimes this is financially not good, sometimes I actually find a position has run further into profit than my target by the time I get to restoring the order, so it roughly balances. I certainly don't have dangerously large positions open overnight.
