Why are some of the pro junglers taking a 2% XP gained quint in their rune pages?
I tried running it after seeing some of them take it (saw their games on ProBuilds) and I didn't notice too much of a difference in the XP I get from my several first camps. It definitely doesn't put you in a situation where you need to kill less camps in order to hit level 3 and gank (that'd be disgusting, just like when they changed the jungle and made it so Red>Krugs = Lv. 3 before botlane's second wave even arrives)
So.. What is the real purpose of this quintessence, then? Is it for junglers to not fall behind their laners later on so they hit 6 with them in order to set up proper ganks or fights? Because despite spending some time in PT, I didn't manage to find out why they run that rune.
Example: http://www.probuilds.net/guide/show/KR/2862381742/2749828 Jin Air Raise ran a 2% XP gained quintessence on his Rek'Sai..