I have not spoken to any staff member about this. I put in hours and hours of hunting with Purplenum w/ and w/out Happy Hours and even talked to another player (i forget his name) whom agreed that Purplenum seemed to be a harder rate for him as well. Skyly dropped a lot more frequently for him, whereas I found my Asteron very quickly too. I'll look into this more and I'll leave a disclaimer to ensure that it's my opinion on the rate of the item. I didn't mean to stir any confusion, just trying to save people the time and effort of farming D: