Large is relative to your bait supply...large = near 4" Rainbows.  I coulddn't catch a fish on a 5" Shiner or even a small one.

Jigs...pink (no glow) fireball, 3/8oz under 16 ft and no current, 1/2oz good for trolling over 16 ft deep.  You rarely might need a 5/8oz if anchored upstream of a hole and you needed to drop your bait right over the break in heavier curent.  We spent 90% of the time trolling with the MinnKota....real slow.

Are the WI 'eyes you fish river fish?  or like these...Lake fish that chase bait up a river?  Visability a factor?