The good news is you really don't need any hot spot. By early May we are close to, if not at summer pool. Bluegill and Red Ear are much different than crappie. Crappie are structure oriented and being able to pinpoint structure either above or below the surface really helps. With Bluegill and Red Ear in early May simply go to the bank. Wherever you stay or wherever you launch just head into the shallow water, 1-3 feet or so. Cast a Shelton jig (most all area bait shops carry them) under a small casting bobber. Or use a small bluegill hooked tipped with piece of nightcrawler. Put a small split shot six inches to a foot ahead to keep it close to the bottom. Cast out and within a few seconds if there are gills close (and most of the time there will be that time of year) the line will take off. Set the hook and hold on! Keep working down the bank and eventually you will run into Red Ears. Sometimes you will just catch one or two and sometimes you can work an area for days and keep catching them. I do like the sandy, cleaner bottoms for red ear but I have caught them everywhere.
Last year we had floods into early May. When water receded there were thousands of bluegill and red ear beds in gravel parking lots, beaches, front yards, etc. So they nest anywhere they feel suits them. As far as whether to fish Barkley or Kentucky it is simply preference. Both are loaded with panfish and fishing just seems to get better year after year. The gills and ears seem to have gotten thicker and feistier. As much as I love crappie fishing I really believe I look forward to May even more. The fight these pie plate shaped chunks of fish muscle can produce it amazing. It really doesn't take a lot of knowledge on where to fish. It is more on how to fish. I hope this helps you.
Old Guide
Matthew 6:34
Therefore do not worry about tomorrow, for tomorrow will worry about itself. Each day has enough trouble of its own.