So my backlist has been up on KDP for about 40 days, and predictably sales have started to slow a bit compared to closer to the start of their release date. Gravity is still chugging along well, but the other two books are dying on the vine, so to speak. I was thinking about running a Kindle Countdown Deal, reducing the price of my first book, Under the Knife from, $3.99 to $0.99 for 7 days in September. Anyone with experience running these have any suggestions? Caveats? General advice or socially distant fist bumps for moral support?