Well put, yes more details helps, I am out of East Harbor, the past two weekends I was east of kellys, (north of kellys in 40 ft last weekend) I tried 20, 30 and 40 foot water trolling speed was 2-2.5 mph, Used a perch, carrot top bandit. I was only using 10 foot or so leads and changed to 30 ft or more, balls 1-2 ft above where I was making fish. Changed up last weekend and In 40 ft of water had balls at 30-35 ft and 1 at 20 ft.

I'm thinking I am not going fast enough, but that can't be all of it.

Next time I am out I plan on going north of Huron

Thanks for the comments