i dont mean to put down...but for 8 or 10 sits and no deer either a) your really not in a good spot or b) you need to consider re-vising your scent control c) your kidding yourself and your land isn't that good.
w/ that bein said i hope things turn around.
i have sat proly 9 or 10 times this season. i average probably 3 or 4 deer a sit, and have seen as much as 10+ a sit