[JRutledge]

The problem is that there are differences between high school rules and other levels on this very topic. You can use a forearm at other levels in the post like NCAA Men's and Pro/NBA Rules, but the post is defined as a specific place on the court that would have markings where that place is located. You cannot have the expectation that everyone is aware of only high school rules if you are playing with older people that might have experience with college and above. After all, this is a pickup game if I am reading this right and I am going to assume you are dealing with adults for the most part or people that are not currently playing high school ball. I am also going to assume that a pickup game does not have actual officials, so this seems like a moot point.

Peace