First, most contractor's saws use the same bearings as a Uni-Saw (6203-2RS.) An 8" will have better resell value. It is very unlikely that you will ever cut a dado more than 3/4" deep (half laps on 2 X 4 stock.) I have the SD 208, 8" Forrest Dado King, and 8" adjustable dado by Freud, all of which I use on my contractor's saw.Thanks Dave. I was worried the 8" might be more of a strain on the arbor and bearings than the 6".
Thanks again.
Classic symptom of WGD!Also, the 8" is usually available at the local Borg's - no shipping and instant gratification!!
James