To prepare a paper based on the "Sidemount Principles for Success"

Closely related to trim is the second verified principle: the A common failure among novice sidemount divers is over-gripping the tank valves, leading to tension, fatigue, and restricted breathing. The verified principle dictates that a diver’s hands should remain relaxed and free—never clutching the valves for stability. Instead, the diver’s body and the cylinder’s positioning should be so balanced that the diver can release both tanks entirely and hover motionless. The hands exist only to operate the valves (turning gas on/off) or to unclip/clip cylinders during transitions. The “happy hands” test, verified by cave and technical instructors worldwide, is simple: a successful sidemount diver can perform an entire skills circuit—including mask clearing, S-drill (gas sharing), and valve shutdowns—without ever needing to hold a tank for support. If a diver must grab the valves to stay horizontal, their trim is flawed.

Sidemount: Principles For Success a comprehensive technical diving guide and eBook by Andy Davis

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