While your idea has spawned a bit of discussion we want to avoid "here's my idea, someone do the work please!" posts. This isn't want we are here for. I appreciate that you put some thought into it but we aren't here to do the math for those who won't / can't. Keep in mind as well that sentences start with capital letters, end with punctuation and the contraction is I've not I'v.
I'v been discussing this matter on the Battle.net hunter forum for awhile... And many people have suggested I post here for people to look into it in depth.
Recently I took up a spec that involved Improved Steady Shot, but this does not mean I'm sacrificing CoS and Serpent Sting on my priority and rotations.
I'v tested this on some 10m raids and have seen an increase in my DPS. (I DO NOT HAVE T11 4PIECE SET)
With the Improved Steady Shot buff and Focus Fire buff, I'v been able to weave in 2 Steady, 1 Cobra, 1 Arcane in between my KC's without pushing back my KC cooldowns. This means, I do not need to reapply my serpent sting, and gain the benefit of substantially increasing my ranged attack speed without reforging to haste.
Start of fight:
serpent sting while pet is getting to target
pop BW or whatnot
KC, arcane spam, KC, arcane spam until out of energy.
pop fervor, serpent sting, arcane once, KC.
usually by now the focus fire is on full stacks.
Rapid fire/Heroism phase:
i pop rapid fire and focus fire and can cast 2 steady shots, 1 cobra shot, 2 arcane shots between my KC's
replacing an arcane with another cobra shot if i am short on energy. But it definitely fits 5 shots between kc's during rapid fire/heroism phase.
Normal rotations (After rapid fire wears off):
rotations of 2 steady shot, 1 cobra shot, 1 arcane shot, KC
With both ISS and Focus Fire up 100%, My KC does not get pushed back at all
That also means Cobra shot in every rotation can keep my Serpent Sting going without the need to reapply.
KC, spam arcane, KC, and back to regular rotations
Please.. can someone have a look at this build and crank out some numbers? I seriously think this may benefit all BM hunters DPS substantially.