If Comet is a must ride for you I would get to it early as lines seem to stay long throughout the day, and while its a fun ride its not worth waiting for like others are
My first tip... tell me sooner so i can come meet up. Hershey is pretty much my home park. Its already 1pm but go to the back of the park first and work towards the front. Skyrush's lines dwindle down in the afternoon/evening.