First off i haven't read through all the comments, so if someone already suggested this my apologies. You can use a cannon in the ape atoll dungeon while chinning. I don't have any numbers but I'm sure it could greatly improve xp per hour. It would be very expensive, but what chinner is concerned about money? I would like to research the xp rates but as of now I do not have the cash for it =(. Oh and i just want to say how great this guide is, I plan on getting 99 range like this.