I've tried a lower chair, its better, but the cushion still moves a bit.
I found some sandpaper that has a rubber backing, stapled it on and its way better, ugly as heck, but its working for now.
I was actually planning to put the sandpaper side down, but figured I would try the rubber first.
I've also seen Kling On non slip rubber pads that are supposed to go on the instrument, but I think would work on the Dynarette.
Why doesn't the manufacturer figure something out? Oasis came out with a clone which is really no better, same issues.
2017 Glenn Canin Spruce