Oh.....I didn't know this would cause a headache. Sorry

Basically, I machine 4 axis, models out of either aluminium or wood. I use V25 with no complaints. I have a 3D scanner to scan the models. I then use these scans in Bobcad. So they are too big (70MB) to even zip and put on here.
I generally use 3.175mm straight end mill (1/8") to rough out the models which range in size but generally 200mm long (8") x 100mm round (4") .

I then use a 2mm ball end mill (3/32") to do the finishing cut

This takes around 12-14 hours to machine, so my main reason for asking about step over, was to better understand it and maybe speed up the roughing part of the program.

hmmmm . the program I use is ummm ...roughing I think and equestrium offset for finishing or something like that. (the bobcad is on another computer so going by memory here)

Kel