Personally, I don't use it unless CT is going to clip. It just costs too much TP, and in long fights that matters. I may have to use it more if I change my Allagan pants for Wyrm's, depending on how much that 34 skill speed affects my skills (that's the easiest fix to my overdose of accuracy, unless I get really lucky with Coil drops)

I don't think its bad DPS, personally; its got the same DoT potency as Phlembotomize, but less initial damage, which means you're using it for the DoTs if at all. It just costs too much TP for that 100/20 potency.