One blood magic altar for all slate recipes! Hassle free recursive runic matrix infusion! It's useful for any processing machine which uses the same slot for both input and output, if one recipe's output is another recipe's input.
I wish I thought of this technique years ago.
Note: I discovered this technique in divine journey 2 but it works in any pack with projectred and ae2.
Note 2: If the storage bus level emitter inventory reporting is too slow, repeaters can be added as inputs to the AND gate.