Really nice hack, thanks for your work!
I am playing legal insanity mode and currently trying to beat the Elite 4. Tough challenge, but definitely not unfair. Just the wright amount of difficulty for me.
Even though I have to admit, there were some frustrating moments; like the double battle against team flare in the factory and later on in the bistro. I just wouldn't end, but I eventually got it.
One thing I noticed: when I go to the move reminder, my Kingdra is unable to learn the moves it should be able to relearn. No dragon pulse, but dragon rage instead. Got around it by disabling the hack, relearning the moves in regular mode and enabling the hack again, so it doesn't matter.
Anyway, really nice hack and the most fun I had with a Pokemon game in a long time. Thanks!