I looked around for hydraulic or electric supports at the WW. Would be a great gimmik, especially those from E&P which lift and nivel the axle first, then the supports completely automatically. Supposedly the WW then is after about 1.5 minutes absolutely firm and in the water. After also the axle is supported you can use the system as a jack and even lift the wheels over the winter so that you get no stand plates. I’m just running out of 20 kg, actually only the fun costs about 3500 oeks and I haven’t heard anything more about it. Does anyone have such a system?