Question about Bard kiting...

[HardnDaPaint]

So right now I'm lvl 4 and I'm learning how to kite. I got buffed SoW so I could escape the mobs and I click on Chords of Dissonance to start the kite. The first time kiting I pulled about 20-25 mobs and killed them all down in a matter of minutes only to look at my exp bar and it hadn't even budged... I thought... Maybe I need to land a hit on the mob first and then I can start the kite to get the exp... Nope. WTH am I doing wrong here??