SO TRUE!
Once a person gets it (the functional capabilities) of the machine-that's it.
Like you said if it goes 6" don't expect it to be a threat if it lays at 10"
I admit that I'm not the sharpest knife in the drawer-but I do believe it takes a 1000 hrs on the said machine to know it well.
I still learn things every time I go out with Deus, go over the same piece of dirt, try out a new program.
Then try it again with a well known program, change it up, or down.
Oh there's a sweet sound - nice straight line on the XY screen-oh ya.