renovator,
I'm not sure if you bought a chop box yet but if your still thinking about a rigid. A buddy of mine i do work with from time to time just bought the rigid 12" miter saw.
I had the chance to use it this weekend and i have to admit it is a nice saw. It cuts very true and is easy to use.
I will say that it seems to me rigid put alot of time into researching thier line of power tools when thye came out with all thier new stuff. I think they looked at all the differant breands on the market and took the best features from all of them.
My personal favorite however if the dewalt line of miter saws. i don't think there is much comparison when it comes to chop boxes, even though i'm not a dewalt fan in genreal.
you could always buy both and be your own judge.
