That would be my recommendation. This would of course lead to more math. I'm 5' 10.5" tall, I have a medium build, so the chart says I should be about 165lbs. I currently weigh 170lbs. But anyways, let's say I wanted to weigh 165lbs with only 5% body fat, that would leave me with 156.75 lbs LBM. (I'm not subtracting for bones). So I could probably get by with 156 grams of protein a day. But I like to have a little more protein on hand in case my body decides to make a few carbs out of my protein.Or should I go off of what I want my LBM to be at my desired weight?