Soloing for me is constrained by the fact I can't tank the 1400-hitters that give decent exp. (Well, I can, but it sucks up so much mana it's not worth doing). As such, I'm constrained by the duration of root - I use Virulent Paralysis pretty much exclusively due to its disease resist check. Thus, my soloing life is governed by 2-minute chunks!
In places such as Icefall and Atiiki, two minutes is enough to dispatch most mobs with just 5 DoTs running: Juju, Curse, Vengeance and two Nectars (Pain and Agony). The nice thing is that it's perfectly sustainable, if you keep busy with canni and tribute affliction efficiency 6 (up to 25% mana pres).
Using this method means you'll get 3-and-a-bit AAs for a half hour Lesson burn in Atiiki, or around 18% regular exp at level 75. I daresay you could bump that up a notch by using more DoTs and a different root, but to me it's just not worth the effort.