Good point, I'm not saying that 2000 could not be run but the question was "WHAT IS A GOOD HEAD SPEED FOR RAPTOr 30".

IMO it's 1750, If you manage your collective properly and depending on your flying style that head speed is more than adequate. I tend to stay away from high head-speed because for me I don't need my head screaming to perform 3-D. Also I would not want a beginner approaching aerobatics to feel they need 2k to do them either. Anyway do what ever works and you feel comfortable with, I still would not advise 2k on a rator 30.