I just received an RX100 iii from Amazon warehouse in used condition. Looking to replace my RX100 first version. Two questions: 1) the buttons and dials on this RX100 iii feel a lot looser and less solid than on my version 1. If this is the way it is, so be it, but as I bought it used from Amazon, I want to make sure it's not something that got abused (this was not pristine -- there was even a thumb print on the front lens) 2) The mkiii just barely is too big for my old mk1 belt pouch (a neoprene one with magnetic catch). Does anyone have a nice, compact belt pouch you found works on the iii? Especially one that DOESN'T use a zipper?