Hi!Hi Col. What gap do you set your rollers at? Are you using a 2 or 3 roller mill?
I have a 2-roller mill - the Bulldog.
It's on the factory setting, perhaps a quarter turn tighter.
My first "grind" turned out to be great so I haven't adjusted it since. I've got feeler gauges but haven't needed them.
One further advantage of conditioning - less dust when milling.