Here's one better for ya: read Stan Hieronymous' new book, "For the Love of Hops". He explains some new research that shows insights into HOW and WHY the FWH process does what it does. Better than a rule, b/c if you know the process you're more likely to accurately produce what you plan. :rockin:
And also listen to his interview on the BN, he gets into some pretty interesting topics such as perceived bitterness and FWH