Have you ever cut a dado and the parts fit perfectly, just clicking them together?  You will every time with this set.  You should make a test cut each time you change stock just to be sure, but this set is easy to setup.  There is a chart that comes with it telling the mix of blades and chippers  for each common thickness (I put mine in a sheet protecter to help me find  it).  If it is off just a little, slip in one or more of the supplied  plastic shims to acheive perfection!  I have a cheap caliper that I check  plywood with and that gets me pretty close on the first try.