I have made a couple tiered cakes.. And I have used dowels, skewers, straws int he bottom tier to support the top, but they till squish. I am unsure of what I am doing wrong, am I using the wrong cake. I've tried, mud, pound, vanilla and butter cakes.. All do the same thing. Should the cakes be cold/frozen before I stack it?? I think they should be able to stay stacked for at least a day but they seem to collapse after a few hours. Please help I would love to have a successful tiered cake!!!!