Are you getting the EU version or the US version with the stronger transmission? I believe that the US/FCCversion only gets 10km but don't think the European/CE version has that much range.
In a practical sense, there are three issues in terms of range when comparing the
MM1 and
MM2. VLOS, signal interference and battery power/flight time. If we want to stay completly legal other than signal interference Ocusync isn't going to get you any farther, though I think it improves the handling and response. I did a test a few days ago, attaching a strobe to my
Mini 2 at mid day with some overcast and sent it straight out as far as I could still pick up the strobe visually (20/20 vision). It disappeared completely just after 1650' (500m). I hadn't done that experiment before, but about when I had first gotten my
Mini 1 (FCC) go well beyond 2500'. I suspect without a strobe, even in daylight, VLOS would be a fraction of the 1650'. During night flight with strobes I suspect I could get at least 3000' or more before the strobe would no longer even be a speck in the sky.
I think the two game changers with the
Mini 2 are its ability to withstand stronger winds and 4k video, with wind resistance being the big one.
