Hello my friends - Currently rocking the crystal 280x with a couple of adjustments. First things first I took the air filter off of the top as I have a 240mm radiator running as exhaust. On the top I also bought black plastic washers / risers from Ace Hardware so it is sitting about an inch higher than stock. I then purchased 680x case feet and put them on, and they are the same fit! Also 2x 140mm fans on the bottom, and 2x 140mm fans on the front, 2x 120mm fans on the top with the rad.
Case is amazing at this point.
