Adjust to new water conditions
Spring weather brings higher, faster, and dirtier water. It's important to make sure you have enough weight and anchor chain to keep you in your place against the stronger push of current. A lot of times you may need as much as double the weight you would use in slower water conditions. Once you've found your honey hole, it's important to maintain it -- make sure you've got the needed weight to do so.
Move to the fish
A few good spots in west Michigan for fishing this time of year: Grand 6th St Dam and the Muskegon River. When going out on the Muskegon, it's best to fish below the croton dam. The dam prevents the fish from getting out while also providing a place for spawning because of it's gravel bottom. It's where the fish want to be, so it should be where you want to be.