No problem. I am not comfortable holding the YM for too long as I'm not 100% familiar with the ups and downs it takes as it makes a measured move.
In any event, I keep a chart with your times from previous days where I've drawn the horizontal lines just as you have. I've used lines going back a day or two and have done quite well today, simply shorting either a break beneath or a return to a line after a break beneath the line.