Wow. I guess I'm the only one in the "keep the fat" camp. I don't trim mainly because the ones I buy seem trim enough. I do score what fat cap is left and I start the smoke with fat cap down to render most of it, then flip it for fat cap up to allow the meat to baste in the fat. I feel the fat is a crucial part in keeping the meat moist and tender. It hasn't failed me so far. It's not like you would eat all that fat that's left in the pan for goodness sakes. Maybe it's just the chef talking, but fat can be a good thing if you do it right.