My Panasonic/Nauticam GX1 setup has served me well but is due an upgrade. I'm looking at the GX85 and liking the look of it's compact form. The only significant downside I can see is the slow flash sync speed. Is anyone using this camera primarily for stills and finding the sync speed a problem? I think if you used a flash trigger rather than the inbuilt flash then you should be able to bump speed up a notch (probably 1/250th) but that nauticam housing is really small, not sure it would fit. Has anyone tried this?