I should have come here before I started but I didn't realize I was going to have a problem. I have a four tier cake due this Sunday (6, 8, 10 & 14). The cake is a scratch lemon cake with a blackberry filling. I thought I was doing a good job of not overfilling the layers and I did use a fairly firm buttercream for my dams but I am concerned about this thing sliding around when I deliver it as it seems pretty wiggly. The delivery will be at about 2:30 PM on a day that is expected to be about 80 degrees. I use SPS so every tier will have the legs in it before I leave here. The drive is about 40 minutes away and at least part of it will be on a gravel road with the potential for a few potholes. The cake will be chilled and my car has air conditioning, although it isn't super chilly.
Normally I deliver stacked and don't even think about it since I use SPS but the slippery filling has me worried. The design is pretty simple, just a four tier stack with rough icing and some plastic succulents that I'll put on at the venue. So I guess my question is, would you risk stacking it with the slippery filling or should I accept that I will have to stack on site? If the SPS is in I am pretty sure the layers with it will be stable while driving but I'm concerned about it if I stack them and the top tier (6") won't have legs.
Please help me decide what to do? I'm a little stressed at the moment and could really use some help to get this thing to the venue without it becoming a disaster. (My mom just had two heart attacks and a stroke and is in the hospital as I type so my brain is only half here.) Thank you!