Just a quick heads-up: if you end up working on this some more, it'd be a very good idea to remove most of the whistles and use different hitsounds for emphasis. You can get a lot out of soft and drum whistles alone, before you'd even consider anything as strong as the others drums and finishes. peppy would not have enjoyed the constant whistles.
I had a look at insane a couple of times and, once I got past the hitsounds, it felt pretty good. I'll mod the lot if it's DQed--as much as I want my map to succeed, I'd like to assist with making the kinds of maps from which peppy and cYsmix can get as much enjoyment as possible. Hell, just fire me a message if you want it modded anyway. I can at least help you hitsound it in a way that peppy would like more.