When walking up (and only up) stairs on soul sand with the soul speed enchantment, players will get the speed boost in brief, irregular bursts. This is in heavy contrast to jumping on soul sand with with soul speed, where the player will attain a constant speed boost, despite being a block above soul sand for short bursts of time.

The short bursts of speed also causes the fov to rubberband with the same irregularity, making for a rather nauseous experience.