I've been doing really well with the 3.5" swim shad for both Walleyes and Smallmouth. I've been hand pouring the belly in silver smoke (with just a drop or so of black to darken it up a bit) and the top in CC Green and Green smoke for that "minnow look". I use a little bit of silver flake in the bottom...and a small amount of large black flake on the top.
I have both...but the 4.5" is a LOT bigger than the 3.5"...more of a largemouth, Northern Pike, BIG walleye sort of bait.
The 3.5" is also catching some nice White Bass (the 4.5 would be to big).-
Due to the river being so high I've been trolling the 3.5 on a 1oz or 2oz bottom bouncer with 12lb fluorocarbon leader Texas rigged (they smack it so hard you don't have to worry about setting the hook!!!).
I'm going to try and troll them using a umbrella rig (we can rig only 2 baits).. tonight...but it seems like a really good way of loosing two baits at once!!!
Andy