They require a little butchering and must be tenderized. Cut these into suitable individual portions along the apparent mussel lines or separations. Take a sharp knife and remove ALL the very tough silver skin. Shoulder steaks are great for a good husky marinate. See recipe below.
Beef fat has and is receiving an undeserved black eye.
First and foremost, your body needs a certain amount of fat to function properly. Second, fat imparts a great deal of flavor to any meat. Moreover, beef cattle today are raised with much reduced fat levels. As a nation we don't cook sirloin steaks every other night for dinner. The grilling process renders out a significant amount of the fat count.