Does stone bound stack?
Well more to the point, would it be more effictive to have a many handle, for a lot more durability, and therefore speed, via stonebound, or would an Ardmore handle double the stonebound effect?
So the electric modifier makes it stay at its current durability?
And will it then ever use the durability? Such as if it runs out of charge?
So if you did this, many head, Ardide rod, many handle, and used emerald, all redstone except for one, and then mine until it has exactly one durability left; then adding electric? And in this case, would replacing one of the redstone modifiers with a diamond end up making it faster? Assuming of course the gold block, diamond and nether star are already applied...
Would that be the current way to get the fastest possible speed? If you did this, what's the mine time for iridium reinforced tungsten steel blocks? As AFAIK they are the hardest blocks in the game...