I'll be in Europe this September for a month. My kit of choice is my EM-1, Oly 12-40 PRO, Panasonic 20mm, f1.7 II and my Rokinon 7.5mm, f3.5 little wonder. Lately I've been considering adding a Panasonic GX-7 body to the mix as a back-up body in case something fails with the EM-1 and for fewer lens changes and for days where I juts want to travel super light at my various destinations. But I'm considering the extra travel weight and can't quite decide. Your thoughts? Thank you.