We are looking to buy one of these and attempt adding PC based controls on it to modernize it a bit. Hoping someone can comment on the mill whether it is worth messing with or not. I cannot find a good spec sheet for it and hoping it at least has rigid tapping?? Any info on this machine would be appreciated. As I understand it and from owning a 250, They are hell for stout and the mechanics of them are good but the good old dynapath crap is the downfall. I hate my 40 so I know I will hate the 20M. Hoping we can dump the control and use the motion control stuff to make a more user friendly unit. Ideas?