First off, resolution #1 done even before the new year: Register at GotMead. Yay and hi!

So my question is re: headspace. I started making mead this past spring and the vast majority have been melomels. I mostly stick with one gallon batches, but each time I rack them, they decrease in volume (of course). So I am always left with more and more headspace in the carboy. I've heard both sides: that headspace is something to be avoided and also headspace isn't much of a concern with melomels. Which one is true? And if headspace should be avoided, how exactly does one do that? All I can think of is getting smaller glass jugs to rack the mead in to.

Thanks for any info.