Steve couple of outfitters on the subject.
Schmidt Oufitters (wellston I think)
Gray Drake (www.graydrake.com
Dustan Harley (www.rippleguideservice.com)
Have fished with Gray Drake and Ripple, would recommend both. Fished with both on the Muskegon.
I understand the St. Joe fishes well in the Spring as well as the Muskegon and Manistee and Little Manistee.