I would guess they had a an exceptional set of sticks, I'd say 2133 is more like an average top OC, but never know....and looks like the opposite on the Tridents, I've run a number of sets of the 2400 sticks and yet to find a set that couldn't easily run 2666 at 1.65 and find it a bit funny that they talk about trouble with the Tris and big coolers because of the height of the sticks, particularly in note of the fact that they show a stick w/ the heatsink off and yet - they don't mention the Tris top fin is easily removed (simply remove 2 small screws , one at either end) - wish they would have actually posted some results rather than just say they did this or that, makes you wonder.......