Best combination for leeching?

Anyways I don't want to argue. I just wanted to get some information about leeching and if what dpeterlin says is true then I'd like to know how leveling got that much faster. at 9x leeching at harps I could do a level in an hour. Am I to belive that now you can level in under an hour at 9x?

How long ago was that? Because the formula for exp splitting has changed within the last year so that leechers get half as much exp per kill as they used to. That's why it's faster to train (especially party) than to leech nowadays.

If you really want to level up something, level up mules. An HS mule would probably be the best since you two are playing together. An HB or Haste mule might also be nice.