"No, they both leave damage," he says calmly. "From the muscles trying to wrench free of their bones, and contusions and lacerations incurred trying to escape the pain. With the insubstantial cruciatus, however, the greater part of the dead-fish-struck-by-lightning feeling is in the head and heart, where with the physical one the web of scorched-raw-and-ploughed-with-salt spins all down the neural network and each nerve feels scoured and nakedly twitching for days. I've tried to decide which aftereffect is preferable, but it really is a devil of a headache."
He turns, faintly but literally, green at the notion of congealed eggs.