>>18000211To get a fair estimate you just need a sample large enough to establish a certain confidence interval. Smogon has, or is well on its way to reaching that number. As of right now we don't know the exact number, and we never will as probability will never reach 100%, only approach it, unless somebody cracks the DS code. Smogon's estimates right now are the most reliable thing we have, and it's fair to assume that 110k eggs gives us a rough estimate of the eventual shiny odds.