Infraction: 7. Do not beg for hand-holding.
Message to User:
Don't ask other people to do work for you. That does sound like useful information to share though, if you'd like to do it yourself.
It still requires a decent amount of AP to make DC more dmg per RP above RS. With a 517 ilvl weapon it takes at least 183k AP and with a 541 weapon it takes 230.7k AP before DC does more dmg/RP. So if even if you are sitting on runes and take t5 procs out of the equation, any time where you aren't going to cap RP it would be a loss to use DC if you are under those AP values.
What about the Heartstrike vs Bloodboil calculation for vengeance with new weapon itemlvls. i think that one is far more important since it doesnt decrease survivabilty