Building a new machine and at the point of pulling the trigger for the controls. Machine has NEMA 23 steppers from steppers on line. Originally was planning to use Mach4 with online computer. After some additional research, I like the option of offline controls. Am considering SNC 5-5 and Masso as the alternatives. This covers the cost range fairly well. Masso seems to be less risk, but cannot find much input on either that leads me to a sound decision. Any experience would be greatly appreciated.