Hi Frank, the 4 1/2″ is the best all-round Walleye size. For clear to slightly stained water conditions the #01 Alewife color & the #92 Arkansas Shiner works best.
For murkier water the #27 Chartreuse Silk & #04 Fire Perch and #91 Alewife Glow Belly work well all used on a 5/8 oz. Lunker Grip football or Fin S jighead. You can view the color selection by going to, http://www.lunkercity.com/ff-c.html , & the Fin-S Lunker Grip jigheads by going to, http://www.lunkercity.com/ , and scrolling down the left menu bar to Jig Heads (LunkerGrip).