Mathematical Analysis of Magicians and DoT Post-Jump

Elemental Weapons probably. I thought Infinity increased your DoT damage too. Doesn't it work on your damage range and not your skill%? Either way, you could just stop refreshing every other DoT when Infinity is in action. If you look at it though, the difference is very minuscule at ~100%/s, and that's under perfect delay scenario. Most likely, server lag will prevent your cool downs from being optimal and DoT counting can be difficult, but it definitely gives a slight edge if done well. Poison Breath even adds ~40%/s overall since Extreme Magic raises its duration so much.

Big Bang + Fire Demon + Poison Breath on Paralyze Spam with Mist Eruption off cool down
2749.4%/s + 620%/s DoT
=5327.6%/s after Extreme Magic, Arcane Ames, and DoT normalising.

ele weapons are applied somewhere after the skill range, so they don't affect DoT.