So i just sold a couple things last weekend on Craigslist, and i finally bought a barley crusher, (which i've wanted for way too long). and when i got paid yesterday, my wife let me buy my first 50# sack of pale malt as well. The barley crusher instructions say that the gap is set at .039 thousands of an inch. my question is this. Since i've never milled my own, what would be a good gap to start? or does barley vary enough in size that you adjust yours frequently? Like so many other brewers on this amazing HBT forum, i always want to try to do things perfect the first time.