Who's using lake, refurbished etc? My son picked up an AD333 the other day it looked in good nick, but on it there was a logo for a 2008 charity day! I personally stay clear of them myself, but see why lake balls are popular, but seeing as they could be of any year etc that find just reinforced my view of brand new is best. After all , whats the point getting fit etc only to use a ball that could be over a decade old! Add to that you can pick up new balls for a good price anyway.