Angela Hill beating up Xiong Jingnan with an underhook & collar tie
Underhook/collar tie is often more stable than a double collar tie, since your hook keeps you connected and tight on one side, while the collar tie frames, creating space to strike.
The DCT leaves space for the opponent's shoulders to wiggle through & makes it harder to pin them to the cage, while double underhooks leaves you too close to strike with power