The top cover's rear ledge is shorter and less deep top to bottom to give the floating keycaps look, so I think that is why it feels flimsier. I don't like the blocky tacked on look on the bottom of the case, though I feel Ducky have gone a step up in quality with these new 9000 series boards. I liked the aluminum plate in the old ones, but steel one is stiffer of course. Although I am not surprised it is a Holtek, but I am surprised how programmable Holtek is. If it can accept programmable LED, please give us programmable layout...