So I've made it to 30.

My biggest issue with using Thunder is that it throws the DoT timers out of whack. Normally with Bio II > Miasma > Bio I, I'll refresh Bio I into Miasma into Bio II. The problem is thunder drops off sometime in between this.

Have you found any optimal way to refresh DoTs with Thunder present in your skills or should I just stick to refreshing the main three and then using Thunder whenever I can fit it in?