Hyperspeed Water Sliding
Hyperspeed Water Sliding or HSWS is a technique to repeatedly gain speed via C^ Hyperspeed followed by entering water. Going into water conserves sliding speed, which can be used to gain speed by conserving that speed back into a sliding state.
This uses the C^ Hyperspeed trick and sliding speed conversion. On a slippery slope with water, crouch and C^ on the same frame to start sliding. (Somebody add more and better details)