Smitty,
I have not been fishing DH this spring yet and won't be there until 4/25. However, I've fished it every spring for the past 20 years and been trying to keep up and here's what I know for now:
Looks like a late spawn this year. There has been a small wave of spawners already move up and locked up on the nest, the next bigger wave will come a little later, there's a full moon 4/28, that would be my guess. (Could be bad for me if they lock up) The water temps are getting about right. People are fishing swimbaits, grubs, and jerks - REALLY SLOWLY on main lake points and flats. You'll catch some smaller bank runners right now on the clay but the big mammas are still slowly moving up to the flats. Try to find some grass off the main and secondary points and get down there in it with a grub. My suggestion is not to overthink this time of year. Use light spinning gear, 6-8 lb line max, and throw a smoke, bluegill, chartreuse, or pumpkin seed 3-4" grub. Start swimming it thru the grass or by lay-downs as soon as it hits the water and use a straight, slow retrieve all the way back, don't jig it or change the speed.
As for your license, I always stay on the TN side and just buy TN. I would have to look at a map again, but there's LOTS more water on the TN side. Now that can be good or bad. Lots of water usually tempts people to do more running than fishing. I'd recommend getting to know a creek or creek arm REALLY well before zooming all around the lake, and staying on the KY side is a good way to do that. You'll have access to all of Wolf Creek and some good fishing in Sulphur and others.
If you find the fishing REALLY tough, surprise yourself and go down to a 2" grub on 6lb line on an ultralight. My favorites in this category are the 2" Southern Pro Hot Grubs you can get from Cabelas (advertised as crappie grubs) in tennessee shad color. I can't tell you how many 20" fish I've caught on those things over the years (and how many I've lost)
....BillH