Swing counter-clockwise around the left-most Ripper closely (pressing up to retract Grapple), positioned as far left as possible while avoiding getting caught on the stalactite. After swinging under the stalactite with high enough speed, hold down to extend Grapple to push Samus to the left slightly, then release Grapple while Samus is still nearly horizontal. Quickly morph and frame-perfectly pause to equip or unequip Spring Ball. If successful, Samus will continue gaining fall speed while on the ground morphed. Immediately roll left through the door, which should have been opened in advance.