There are advantages to slab casting in that some of the patterns can't be duplicated in a single blank mould and some of the resins set quickly so you have to get it in the pressure pot before they start to form bubbles and cure. Vertical tube casting can produce effects that you can't get with horizontal casting. Individual blank moulds rule when you just want to make a blank or two. Tube in moulds are the only way you can cast imbedded objects (watch part, labels, stamps, paper, snake skin, foil etc). When you get to casting hybrid blanks you use either slab or individual depending on the size of the wood etc you are casting. There is no one better way as blank making involves so many types.
Pete
