As a loyal SAVAGETTE, Im afraid that he will lose female listeners in a move to a 3-6pm time slot. Suburban housewives are too busy during those hours with cooking dinner, getting their kids from school, homework, after-school activities, etc.
Id still make an effort to listen, though...
And good radio is a perfect companion for that sort of activity.
That is when I listen. I catch Beck in the early am, during the day when working it is Alex Jones. Then while doing the dinner thing it is Levin. Not all every day but many days that is my routine.