What kinda tolerances you work too. I did 10 years at an air bearing manufacturer, machining to .0001...sometimes on old worn out Bridgeports..i learned about backlash, play and tightening up ways pretty quick, surface grinding to .00005, cylindrical grinding to .00001. I don't miss it. I laugh when a place says they do high tolerance work...+/- .002....easy! I started out in a prototype shop..loved that job, never the same thing. I miss having access to the equipment for personal jobs.