Nice article. Your colleague writes well, but needs to learn how to form contractions, and the difference between the possessive pronoun "your" and the contraction "you are."
I grow my own hops, which I guess are grassy. What I would really like to know is how to measure their alpha acid content, which as I understand changes a bit from year to year. Is there any way to do this, short of sending them to a lab? I only brew 40-80 gallons per year. I'd like to follow this guy's advice and use MY hops for bittering, and then whatever substitution I need for aroma.