Middle
Ahh the great drumming debate: Heel up or Heel down?
Drummers will tell you, that, there is no right way, whatever youre more comfortable with
Truth is, that, when playing double pedal you’re probably better off playing heel up, because like that you’ll have more power and more kick (boom) however, it does take time learning how to use the heel up method properly. Usually when starting out, using heel up, drummers will lift their whole foot tiring them out quickly, but, what i learned after time with the help of a drummer friend, is to put just the front bottom part of you’re foot into it, and slide it up the pedal from bottom to top as you kick. (not sure if im being clear)basically your heel should be about 2 inches off the ground, front part of foot on pedal and make it as if you would be sliding your foot up the pedal, without acctually doing so, you end up using your shin that way
You can check out Scott Travis, drummer for judas priest, he’s an amazing double bass player, to see what i mean