I hit three of my sites with 10k blasts, same 10k pages for all three sites. One of them went from #16 to not even in the top 1000. Another one took a shitter from #20's to 250's and now it's back up to higher 20's.
You never know until you do it. They all stay in the sandbox for different times, if they even go. All mine went. And always come back stronger.