A lipless crank like a rattletrap can stir them up sometimes, but usually I'd go with a suspending crank bait. Any crankbait you can fish slowly this time of year is a plus. (while the crankbait is suspending in the strike zone.)
The small #4 risto rap with a couple suspendots on it so it rose very very slowly is my favorite spring crankbait. But I have only a few left and they are no longer in production. So a good subsitute is a #5 rapala shad rap with 3 suspendots on it. Use six pound test as this balsa crank is light. Just crank it down to it's running depth, which is about 6 - 8 feet on 6 pound line. Then just pause, reel, pause, reel, pause, reel, and alternate the lengths of your pauses.
Although I agree with every one of the prvious posts, I like the jointed (broken backed) Rapalas in a torut imitator...they are busy stocking trout everywhere right now, and the bass will often key on this, as well as shad baits.
I caught 7 in two hours on a crawdad bomber A fished very very slow. It was only going about 2 or 3 inches under the water and seemed to drive them crazy. I was actually fishing for bass to start with and have never targeted trout with cranks before. Now I want to try it at 11 mile.
I did catch one 24 inch rainbow years ago while pike fishing @ Spinney. That was on a HUGE suspending crank. At the time thought it was a fluke....who knows though ???