I also would like to know how KU has affected your strategy?
I currently have the first in my series permafree and the rest in KU (couldn't gain any traction at other retailers).
I haven't changed my strategy regarding KU yet...but that will change. Specifically, next month, I'm writing erotica all month, and putting all of the erotica stories into KU. As of now, I have no titles in KU.
I will also say that I have promoted since July, except for my newest series, which was a total dud. My sales are slipping, as you might imagine. Why I haven't promoted is simple - I have audiobooks coming out for my first two series, and I wanted to wait to promote when the audiobooks are out. I think that all three Broken audiobooks are going to be out soon, so, as soon as they're live, I'm going to heavily promote the Broken series again. I'm going to try BB, but they always turn down Broken for some reason, so not expecting to be accepted. But I am going to promote everywhere else I can.
The Illusions series will have the audiobooks out early next year. At that point, I'm going to promote that series. BB has taken Beautiful Illusions, twice, so hoping they'll take it a third time. If so, I expect that early next year should be good. If not, who knows? I'm hoping that my new erotica titles will be successful enough to give me a cushion, in case my audiobooks are duds and, for some odd reason, my upcoming promos don't work, but that's hardly a guarantee either.
What I do know is that you're only as good as your last release, and if you don't constantly promote, sales are gonna die. No matter what level you were at before.