Despite making major changes in a lot of sections of my site that took a bad hit, no improvement, no change worthy of mentioning either. I did however notice that one of my biggest competitors, which appeared on the biggest winner list for this update, is now #1(was #5 a week ago while I dropped to 100+ or so) for the keywords I used to be #1 for. I have never tried to copy her site and actually always considered it to be shallow compared to what my site has to offer. I guess years ago I should have just thought about a good brand name, not relevant content in my niche. Name branding is now king, not content.