I've done about 500 of the same scans, I've yet to find the perfect formula. Try changing the offset about fifteen times, and if it still works consistently, you've got yourself a winner. Let me and the board know as well, I'd love to see it work.
Every stock I post on that I said I've purchased, if you see it quick enough, its a buy recommendation. Unless I posted to sell it, then its a sell recommendation. I'll go ahead and take the blame for any money you lose, or win.