The dry verm layer is still there in the method I described. THe only difference is that it is held snugg against the lid by the Tyvek so it wont get wet or fall down between the cake and the jar as the cake shrinks. Kinda helps the dry verm layer to keep it's maximum effectiveness by making it stay dry and stay put. I knew pictures would have made my poor description of the process easier to follow. This technique works really well so I guess I will have to get off my lazy ass and fire up the digital camera!