@GrannyGrump: Some people like their texts justified, some hate it, some like spacing between paragraphs, some don't and so the long day wearies on and on....
@Lagopus: Given that the OPF file structure is pretty much identical between kindle and epub, maybe it is an idea to zip your own epub file, rather than suffer the vagaries that calibre imposes on your file? (I am full of admiration for the calibre team, but the price of implementing conversion from everything to everything is a rather unrecognizable file)
I haven't the guts to go for SVG book covers yet. It is tempting – it just feels silly to have a cover image that weighs in at more kilobytes than the rest of the book – but support seems to be too patchy so far.
(Here's how I zip up under linux, by the way
