what do you think of the wilton support systems?
SPS all the way!
Because I prefer not to deal with deposits and waiting for bits to be returned--and I want to keep costs down--yes, even lower than the cost of the SPS--I don't use a "system", but I do use the Wilton plastic dowels and hidden pillars.
I have no problems whatsoever with them. I use fewer plastic dowels or hidden pillars than the wooden ones and they aren't prone to shifting because a hollow cylinder is extremely stable and strong. They're cheap, easy to sanitize and easy to find--from Michaels to Wal-Mart.
Whatever works for you.
so you use the plactic dowels and supports instead of the wood ones? and the cakes transport well?
I often use a sticky piece of fondant on top of the dowels to "stick" the board above to the dowel top.
I use the hollow plastic dowels and foamcore. I use a single wooden dowel as a center dowel if I'm making a stacked cake that I'm not delivering. I use at least two thicknesses of foamcore for the bottom board, then the cake sits on its own board on top of that. When I put the center dowel in, I use a hammer to drive it all the way through the bottom board.