I have a Elf Joker6 15m and love it :-) See video for a low wind example. https://youtu.be/jLBXyfzdSfo The wind meter showed 2.3m/s ! (watch at the end of video) I logged 35km/h with peak at 45km/h on this run. I also got a long tuning data from former owner. I cannot guarantee it, but that's how my...