I have been looking for one of these for a while as it's based on the Agfa I have enjoyed using over the last few months. Being a Russian camera I am expecting a few quirks, but is there anything I should be aware of in general use to avoid breaking it. I read a thread on the RFF about someone that changed the flash sync without winding it on first and this jammed the shutter. Also I guess you have to adjust the shutter speed before winding? It already has the red window mod, so no worries there.