Silverside slow cooker recipe?

I bought a small silverside roast today intending to cook it in my slow cooker.  I've googled some recipes, some of which include vinegar, and some of which recommend covering the roast with either cold or boiling water.

Anyone have experience with silverside roasts and the best way to cook them in a slow cooker?  I know it's an extremely lean cut of meat and will need a wet, slow cook to be flavorful.  I'm just not sure what flavors to incorporate, and whether actually covering the meat is necessary.

TIA

I would just treat it like a brisket and pop some bbq sauce on it and let the slow cooker do its work, don't add any water, the steam will make enough water. I had a Waitrose magazine a few weeks go with a recipe, it had lots of pearl onions in it, check out the Waitrose website.