When using pipe tobacco stay away from flavoured (fruit, coffee, rum etc) stuff since the casing used are not that great and the results are strange off flavours in your moassel. Don't use extremely aromatic blends becuase most of them lose the qualities that make them special during the baking process. You can keep most of the aromatic qualities but it's really hard to do and certainly not something for a beginner. Use the sort of tobaccos I mentioned in my last post instead.
When preparing the tombac base used in your own moassel just prepare it as if you were going to smoke it by itself. For molasses guidelines see: http://www.hookahpro.com/forum/showt...light=molasses