RE: rubs?
I never set up a stand just because there are one or more rubs there. Rubs are only a small part to the equation, and mostly made at night. The odds are firmly against you if you simply rub hunt.
In pressured areas rubs along field edges and open hardwoods will rarely yield a good buck, because they are made at night. You have to take into account the bedding areas, to determine if a rub-line is worth hunting. If it is very close to, or better yet inside a bedding area then and only then will I consider hunting it. The closer you are to the beds the more likely you will catch a good buck during light.