That's the one I'm thinking of. The reason I'm thinking of adding a hold-down for the lever (probably just a bungee cord) is so I
can use a two-handed sledge (splitting maul, acutally) if things decide to be stubborn.
If I want to
really wham it I can take his advice and add a drop hammer.
Should be fine for 'runs' of a couple dozen at a time just to have my own tokens to hand around.