Yes i have seen green shoots of recovery!
I don`t mind sharing what i changed at all…..that is what forums are for….are they not!
I had many links on the same page that pointed to the same page (i think the Penguin filter has been designed to punish same page links)….i now have zero links on my homepage that point to my homepage and i have bounced back to roughly where i was in the rankings…..and that is all i changed to be honest with you……so that tells me the Penguin filter is to punish sites with same page links!……i hope that helps you!