The jig I made to cut dadoes with my router works great. The dadoes are perfect. The version of the jig that I made is the one in which the router rides against the straight edge and across a "wing" between the straight edge and the router bit. Unfortunately, when I cut the first dadoes, the base plate on the router was not centered. Now that it's centered, one wing is too wide and the other wing is too narrow. The question is what material do you recommend for the wings? The current ones are 1/4" plywood, but I don't have any more of this smooth type. Some people recommend hardboard, but it gets fuzzy. Acrylic would be fun but probably expensive for such a jig. Should I look for some more hardwood plywood?