a) that's a major feature of iTunes' sync capability. Why wouldn't I have that ticked? b) I shuffle the entire device so yes it is as I only buy and put music

a) that's a major feature of iTunes' sync capability. Why wouldn't I have that ticked? b) I shuffle the entire device so yes it is as I only buy and put music I want on it. c) Hell yes. Sheldon moment: I have 10 pairs of socks exactly the same and and everyone knows I don't want socks for Christmas. Apple should know I don't want smelly U2 socks for Christmas seeing as my entire device is full of electronic and industrial music.