Is there anything I can do to keep them from weeping/leaking?
I learned here on CC to pipe a "dam" around the edge of your cake before filling.....I always make some of my buttercream really stiff by adding powdered sugar...then just cut the end off of a piping bag and pipe around the edge....usually stiff enough to keep anything from leaking out.
As Jessica does, I also pipe a 'dam' around the cake.
I use the inside of the coupler in my bag and no tip and just pipe a big round 'dam' around the cake.
Hope it helps!
Fresh strawberries have a lot of water in them and will leak and start to get mushy and spoil quickly.
That said, a fresh strawberry dessert should be eaten quickly after preparation.
To minimize damage from a weeping berry, the berries can be glazed with a jam. You can melt some strawberry jam or make your own. This can then be used to coat all of the berries and sort of seal them.
This melted jam can also be used to brush on the cake. It doesn't soak in much because it is thick. It prevents the cake from getting soggy.
Also, dip or paint any berries that would be on top of the cake for display. It gives them a wet look and keeps them from drying out and looking unappetizing.
I will definitely use a buttercream dam, and I had never heard the tip about the jam...wonderful - will use that also!!