Sounds odd. I have the exact same setup and bought the same stuff from the same company. Did the sheet come wrapped in plastic sheeting to protect it from dust? Pretty much out of the box, it's pretty sticky. But, like I said before, it doesn't work as well w/ the matte finish of the Ascend as it does w/ a glossy surface. Maybe you got a bum sheet? You did remove the plastic sheeting, right?

Maybe you might be better off with the Blu-tak stuff that others seem to recommend and use the sorbothane for damping the feet of your equipment like tjennings does.