I have been back testing for a while and keep running into a few dates. My start date on a trade was Feb 15. The market drop for 2007 Feb 27 came up. I could not figure out how I would able to tell this was going to happen and and the strategy that would work for this drop. I tried the Road Trip and M3. But nothing survived this drop. I couldn't see why I would have put on a bearish fly as this trend kept going up.