How on earth do you make sure the cake is supported on tall tiers and it won't fall? Is there another trick to it?
That all depends on your set up. Are the pillars on plates? Is the plate on top of another cake? Are the pillars spiked pillars? Its all in the set up.
Normally pillars are on plates and the plate is sitting on a cake. There are dowels or whatever support system you use that the plate rests on so the actual support isnt the plate and pillars but the dowls, etc.
Hope that makes sense!!