They get better as they break in to the point where, for sonics, almost any position sounds great. Just guessing, but they eventually sound like the music is just falling easily out of the drivers w/o having to be "forced out" by the amp.
And then you just position them for the best comfort. Mine sound great pushed either forward or backward, drooping down or tight and high. I honestly can't find a position to make them sound less than spectacular.
This is not so with other headphones.