When you join two halves of sponge cake (as in this photothis photo) which way round are you supposed to do it? The instructions I've used seem to assume what comes out of your two cake tins are two fairly even, level cakes.
In my case I always get quite domed results.
Am I supposed to
a) squish the top one down on top of the bottom and disguise the poor join with filling
OR
b) turn the bottom one over, for a good join, but a wobbly cake, but sort of works if you firm the bottom one down
OR
c) cheat and slice off the dome of the bottom cake