preloading electrolytes

[Suzanne Mounts <mountss@usfca.edu>]

I have a recollection of being told at some point that preloading
electrolytes more than the night before the ride didn't have any real
effect (no harm but no help either).  It sounds like people are preloading
several days in advance.  Am I reading that correctly?  What are people's
on preloading and how much in advance it is useful?

Suzanne