Thank you Ramm, I appreciate the explanation, as oppossed to just responding (like so many others) with somethign along the lines of "diving is real, suck it up."
What you mentioned about the damage, that was what I was concerned about the most.
I figured if the player could dive the same distance that he could jump, and retain full health, then most players would choose to dive as oppossed to run the distance or jump down, which I thought would lead to over-done diving and unrealistic scenarios, e.g. people diving 5 feet straight down just because you can jump 5 feet down and not get hurt.
Fortunately, it seems you have taken this into account, so that a diving player will take damage from a height that may not damage the same person jlanding on their feet, so I am confident now that the decision to dive will be weighed by the player more realistically then I thought.