I honestly appreciate your work on this. However, don't write as if you were trying to sell something to the people on the mailing list. "INSANE FLOAT PERFORMANCE!!!" seems the title of a bad YouTube video or something lower than that, while you are just trying to tell us about "Relevant performance improvement when sorting floating point numbers", a subject which is much clearer, less intrusive, and more professional than the one you used.
Thanks for your efforts, nonetheless.