Play fixed in central column Ulanzi Zero YF38
After having used the Ulanzi Zero YF38 carbon tripod for more than two years now I noticed play in the central column. It's made of two tubes that are somehow connected.'The play meant I couldn't use the tripod for long exposures: it had become unstable. I couldn't fix it so I reached out to the helpdesk and they said I could screw the twon tubes tight om each other again. That's what I had already tried so I responded to that message and after that they (he/she) sent me a video showing exactly what to do: unscrew the tool from the bottom tube, turn the balllhead sideways and through the hole that appears stick the tool to reache the screw that tightens the two tubes. And then just screw until the two tubes are fixed again. So easy! Probablly was also mentioned in the manual but must have forgotten it.