I bought this a year ago, and have just recently been putting it to a lot of use.  After having done several projects now, I am not all that happy with it.  I bought it based on the Freud name and the price.  Does it work, yes.  I can't get flat bottom dado's... Every single time, my dado's have grooving from the outer blades.  This has been true with the 5 different dado widths I have cut.  Bummer..  The holes in the blades are not all the same diameter, this is a minimal difference but some don't even fit on my arbor...  Some are a bit loose... This would probably explain the grooves left in my dado's, and why some people have flat dado's and some don't...  As far as the setup chart with shims and chippers goes... The width configurations are confusing.. This has led to a lot of time testing out shim and chipper configurations... An example of confusing shim/stack setup is 13/32" and 15/32" have the exact same configuration, with no further explanation...  So what is the real measurement of stack A+B+C+D+S1+S2 if two measurements are given? It would have been a lot better to get an actual cut width and ply width designation.  It can be figured out, but wastes time.  I have the Forrest WWII as my main blade, which has now set my standard for blades... even with it's high cost, it ends up being well worth it in the long run..  I would not recommend this Freud dado setup for a profesional result, and look forward to buying the Forrest dado set. The best solution to this Freud dado stack setup is to take an hour or two and cut all the dado combinations on to one piece of wood.  That way you have this stick to test all of your pieces and quickly the proper stack setup for your project.  It is cheap though, so if that gets you cutting dado's, get it!