VR milling has a VR machine but I can't seem to find a fast forward option so you have to run it real-time. I noticed the tool do some weird things like randomly plunge to the bottom of the stock at the beginning then work up from there before retracting and beginning from the top. Highly likely my fault for setting something wrong but it's these findings that made me realise I need to understand things a bit better to gain confidence.
Thanks for the help