Termite, in answer to the last question, about any problems, I've had my EX-30 for about a year, and the only problem I had was some front-to-back movement when I first got it, but was able to fix that by adjusting the motor.
However, the purchase of the EX has caused other problems, such as statements like, "You got the saw of your dreams, now I should get the sewing machine of mine" or "you got a great saw, I should get a great car." Stuff like that.
Bill