The shin was in one piece. I browned it, put it to rest while I browned some onions and field mushrooms, deglazed with red wine and the last of the gravy from last week's brisket, some rosemary and bay, and the whole thing braised all day in a low oven. It was delicious.
By the way, I do a lot of slow braises. It's a very convenient way to cook - you can get most of the preparation done first thing in the morning, stick it in the oven and forget about it until you want to eat. And it helps you get the best from meat, especially the cheaper cuts. I'm lucky enough to have a (fuel-efficient) Aga-type range cooker. That works very well for the type of cooking I do, but it's by no means essential. You could set a regular oven to around 80-100C (about 175-200F) for a very slow braise, or leave the pot on the hob on a very low flame - or better yet, in terms of fuel economy and convenience, use a slow cooker/crockpot. I'd certainly invest in one if I didn't have a range cooker.