I'm thinking of puchasing a new miter saw. The two I'm leaning toward are the Ridgid model MS1250LZA 12" compound miter saw and the Ridgid R4121 dual compound miter saw. It would seem that the dual compound miter would be the way to go as they are both the same price. Am I missing something? How about pros and cons for each. I gotten a lot of good info from the forums and would appreciate any input I could get. Thanks.