One-Handed Spring is a niche variation of the Spring. Its mechanics are similar to those of the traditional Spring, but the challenge lies in thumb placement. The thumb must be positioned precisely to allow the remaining cards to release smoothly, as they tend to catch against the fleshy pad of the thumb.

Running Scissor Cut, also known as a One-Handed Overhand Shuffle, is a continuation of the Scissor Cut that systematically strips off smaller packets from the main bottom packet. References Dan & Dave discussing this move (5:06-7:54) https://www.youtube.com/watch?v=6m0mjWI7m1Y