So I'm making a mother's day cake.  The middle cake will be a double barrel, ganache frosting.  How do I use the sps system to place the top cake on top of the middle double barrel cake since there will be a board in the middle of the double barrel?  Would I use the 4" column?  Would that rip the cake?  Thanks!

I have never used sps systems but my guess would be to fill and layer separately and then insert sps right after crumb coating. 

Best to ask is @leah