I agree on the roll resistance issue, not only is it perfectly explainable (there's nothing there for the vehicle to lean on through turns) but I have driven my VX hard enough to tell the difference now that I've cut the stops. I've been debating putting the stock dampers/helpers/stops on since I now have the 1.5" Daystar spacers to soften the bumps. It is a little scary at high speed...
On the other hand I've cut the stops in two different VX's now and can tell you that in my "before versus after" experience there is no increase in road noise whatsoever. The only thing I can figure is perhaps you were hearing your suspension travel more, which for some reason is noisy on your VX?