I feel like cranking out some DPS calculator spreadsheets for this stuff, may have to look at it later.

How do DoTs apply? Is it the potency every second? So 10 seconds of 20 potency is 200 damage (Ignoring mods etc)?

Also, has anyone tested if Disembowel is actually doing anything? I haven't personally tested it, but my thought was if a mob has 0 resistance to Piercing can it actually go lower, will you actually be receiving a boost from it in that case?

It's something to test I guess later.