Most of the early AM hours EST, I was playing the $2500 game with BTC. Buying at $2480, selling at $2520. Like clockwork. The ups and downs directly translated to ETH.
Most of this morning and this afternoon, its been the $2550 game. Sell at $2560'ish, buy at $2540'ish. Not making a killing per trade, but do it for hours on end, and profits could be in the $1000's pending on how much BTC you're working with.