I've just changed to a UC100 and found the change over very easy and smooth apart from a little problem with the a axis not working at first.
I've also bought UCCNC to try but not had much chance yet and also most of my work involves using the wizards in Mach, stuff like thread milling and keyways is easy with the wizards. I guess I could write the same code by hand but I'm an occasional user so forget bits.
I'm not sure if I'd change to mach4 either, 3 seems to work for me at the moment and I'm not seeing any problems with CV on my mill.
However I'm thinking of changing over to UCCNC on my router as that is only used with CAM and goes much faster so I gess it'll take advantage of the better CV in UCCNC.
Is there any stand alone programs you can get that would replace the wizards in Mach?
Steve
Can't you run mach without a motion control selected and use the wizards in mach while UCCNC is open? Just do an edit save as from mach and save it to a directory where you can grab it from UCCNC.
I'm running UCCNC on 2 routers right now and I won't be switching back to mach at this point. The CV is just so much better.