I watched the videos about thermaling and ridge soaring. The ridge soaring was a bit scary to me. But the video on thermaling was very good. Especially the angle of bank and speeds. I don’t always bank as steeply as James Cooper but I do frequently bank and fly at the speeds he describes, 50 to 60 knots while thermaling.
So James video might help. Tighter circles will keep the glider in the area of lift better. And tighter circles will require higher speeds. For those of you searching give it a try! It just might end up adding time to your next flight.