I would wrap several times in Saran Wrap, rotating the cake so each new "edge" is covered and sealed. Then, if possible, put in a Ziploc bag. If the layer is too large. you wrap again in foil.
Foodsavers are tricky because they tend to ruin the integrity of the cake shape itself.....it sucks out all the air (including what is in the cake) and smooshes it to pieces.
When I am in a super picky mood, I wrap like crazy in Saran and then put the wrapped cakes back in their clean pans and pop in the freezer. A day later I can take them out of the cake pans an the cakes have been protected and tend to retain their shape better. And I never unwrap a cake until it is completely defrosted, or unless I can going to ice it right away. Otherwise the cake dries out.
ss4him,
I personally wrap the cake while still warm with at least 3 layers of saran wrap. Let freeze completely and then keep frozen until you are absolutely ready to ice. It will come out nice and moist if you get the first layer on while it is still frozen.
Wildkat
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