2nd Nov., mid-Spring, warm but windy. Full brass ballast 574g but could use more. Look around 3:25 where a small radius but powerful thermal lifts the X2 50m in about 3 turns.
It then "pops" or vanishes or I lose the core. Thermals today were small, feisty and petulant. I'll call them "ginger step-child" thermals (no offense to red-head step children everywhere).