I just bought a Freud SD608 and it's the best dado I have ever seen. It's a little pricey at $210 but worth every penny. The chippers are 4-wing and the thing cuts extremely clean. The outer blade is adjustable which eliminates the need for shims. My problem is the arbor on my TS3650 saw isn't long enough to use all the chippers. The max cut is 29/32" but I can't get more than 9/16" because of the short arbor. Is there any way to extend the arbor on this saw?