Don't take this the wrong way, but have you ever played that build in ubers? You don't have any % damage reduct, no block, very little life on attack and virtually no life steal, very low crushing blow % (which you don't help by not 1-pointing howling totem) and little if anything on gear to help your AR. It does have some nice procs. Even though the gear you suggest is very expensive, it somehow manages to do low damage and have little survivability.
Additionally, you suggest going with dragonfire at low levels (a skill that doesn't do any appreciable damage until high point investment), and to take Pestilence at end game, even though dragonfire synergizes very well with carnage and vastly outdamages it with 25+ points, as well as the fact that most bosses are immune to poison anyway. You also suggest putting 25 points into Deathlord even though even with crappy gear you will hit the defense cap at somewhere around 8-12 points (I hit my cap at 7 with fairly low str/dex and decent +skills), which wastes 15 skill points. You don't 1-point talon's hold or Bane, which are incredibly useful 1 pointers, and you don't 1 point void archon. Void Archon + Bane is an immensely powerful AOE debuff combo that bumps your damage output and reduces damage taken greatly, at least in my experience anyhow.
I know you have a lot of guides, so perhaps I'm looking at it wrong, but I'm honestly curious as to why you chose all those options. I admit it's possible I don't know much about melee nec and have been playing wrong all along, but I'm just confused as to why for instance you'd waste 25 points in a skill like Deathlord that only benefits for a few points, and with 500 sigs and good +skills you might hit the cap at 5.