Swede,
My comments on the start of the striper run are based on many spring trips to the Illinois River, going back to the '70s. Generally the white bass come in to spawn only after the sauger are mostly finished. Usually, in a normal year, that would be about mid-April. Can you catch white bass in March? Sure you can. But that is not generally the start of the white bass "run", when the majority of the population moves shallow. A few stripers here and there, even big ones, does not signal the start of the prespawn movement. I was talking about when things really get going, when they're in there thick, and everyone is catching them. That happens in April.
There are about 6,947 different lures you could use for them, but jig/minnow, blade baits like Zip Lures, or spinners like Vibrax are probably the top 3 choices. I like jigs with some hair on them, and the pink/yellow has been a favorite of mine. The Zips work in almost any color. I use 1/4 oz size mostly, but 1/8th or 1/2 oz work too depending on depth and current. Vibraxes in silver with white or yellow hair on the treble works too.
Hope this helps, and clears up any misunderstanding.