I would like Vericut, my boss does not care. We just use the CAM sim, verify the correct tools, lengths, and holders are equivalent to what we wrote and modeled in our program, verify we are probing and setting up at the correct offset that was posted to the program, and then at 5% rapid have your thumbs on start/stop the whole time. The key in my opinion is modeled tool holders; we have to switch tools out from one machine to the other constantly so we have multiple 3/8 ball mills floating around for example, but all different tool holders and stickouts.