Spares definately have a meatier, bolder taste than loin backs. I'll pick the spares each and every time. I do trim them pretty tight when I cook. I find it more enjoyable to do the grunt work at the prep table, not the dinner table. Eating spares is an experience. When you serve them whole your guests have to work around the bones in the tips of the ribs. The skirt meat also gets in the way when trying to bite a rib, but makes for a great treat about half way through the cook. As for membranes - I ALWAYS remove them. They serve no useful purpose and once again take away from the *experience* as a whole. I also cut my racks in half to fit them in a rib rack on the WSM.