Hi all!  I would appreciate any input or advice you may have.  I've made wedding cakes before, the tallest being a 7 tier.  Anyway, because of the limits of my own strength, I always stack on site.  I'm making my niece's cake this weekend and am more nervous than I've been in a long time.  It's a 7 tier square cake (actually 8, but two of the tiers are only 1 layer).  The bottom tier is a cake dummy because of the actually guest count.  I've inserted 9 1/2" dowels in the cake dummy and now that it's covered in fondant am worried that I didn't put enough dowels in to support the rest of the cake.  Normally I use the Wilton Hidden Pillars which are pretty strong in the cake layers, I'm just not as familiar with the dowels and since these are thicker than I normally see being used in cake, I'm hoping they will be strong enough.  Any advice?

Thank you!

ADon't worry; it should be fine

My concern was because there will be so many tiers (7) on top of the dummy.  That's why I put dowel rods in the dummy.