I stop and start all the time. I've went for 6 months without making a knife and then made 10 at once. Like most of you guys, I'm beyond busy, keep way to many irons in the fire! Just step away for a little while, get caught up on other things, your skills don't perish that fast. Oh, and most important for me, do not keep an order list full of waiting people! That ruined it for me until I tossed that list in the can. Sure, ticked off some guys, but that list was wearing me out.