@ Scooby Well, originally I would have said drop down to the M5 for the 21 EMA cross, but you are right that the M15 is less choppy, so let's say on the M15. Personally I am not sure what the best trigger would be. My point is simply that the OB or OS on multi-time frames is great for providing the condition for the trade, but then maybe once the condition is in place there is another indicator that can provide the trigger. Maybe a cross of the MA, or it could be something else.