The Exchange Version of the Ruy Lopez

So I found this interesting article about the exchange version of the Ruy Lopez opening where you capture Black's knight on c6 on move 4 rather then running away from his pawns. The interesting thing is that it really opens up the center of the board for white and calls for you to exchange major pieces in favor of protecting your pawns for the end game where your opportunity for passed pawns is superior.

Of course, Wikipedia tells me that 4...dxc6 is almost always played at the master level so my opponent played 4...bxc6 instead, so the game is still a bit open at this point. If anyone's interested, i'll let you know how it turns out.