If I'm at a point where I've done all I can with a recruit and have a scholarship on the table, does it benefit me to keep making general interest calls and/or watching film of that player? I have a recruit with a scholarship offer and all allowed recruiting activities have been done (until I can do a home visit). My school is slowly sliding down his interest list and I don't know if these basic calls or watching film benefits me or if I'm wasting my time.

Watching film doesn't help at all - making the calls still does have a minor impact but he's more than likely just holding out to see if his top choices come along