This statement is indeed false. Auto attacks have always and are currently hitting during killing spree.

By this logic, you are arguing that it isn't worthwhile to use Slice and Dice before Killing Spree because this will result in 3,5 seconds (Killing Spree duration) where you don't benefit from Slice and Dice. And at the same time, you're suggesting a start-up where you don't benefit from Slice and Dice for 6,0 seconds (maybe more, depending on how many Sinister Strikes it takes you to get "close to no energy", as you put it, and depending on whether or not you use Sinister Strike after the Killing Spree as you suggest). How is 6/7,5 seconds without the benefit of Slice and Dice better than 3,5 seconds without the benefit of Slice and Dice? Also, you do, in fact, see white damage during Killing Spree.

It’s a tad RNG infected; I tested it out a good few times, and most times it’s doable to cast the Rupture without Energy capping. However, you do risk it if you see too many Combat Potency procs and I certainly ended up Energy capping a few times as well. This is anecdotal and borders on conjecture, of course; also, as your gear gets better, and with additional buffs during raids, you could face an even greater risk of Energy capping. An Eviscerate would go some way to alleviate that.

I think you're right, it could be a dps gain. However, it’s RNG infected as well. You might simply reach 5cp5ac too fast and still be in Shallow Insight if you see too many Revealing Strike procs (too fast, and too many seems an odd label in this context). Additionally, getting to Moderate Insight also takes long enough for your initial Slice and Dice to be on the brink of running out. However, since you’d be sitting at a fair number of Anticipation charges, there’s a chance you have enough for one finisher and charges to refresh Slice and Dice – unless of course you have to refresh Slice and Dice and then don’t have 5 Combo Points for a finisher. At any rate, it seems fickle; but I suspect you could in some situations stand to gain from it.

This has been discussed previously; the consensus seems to be that cooldowns should, as a general rule, not be delayed. Since there is considerable variance in the actual length of the cooldowns, and missing even one use would negate most advantages gained by a delay, it's usually safest to blow them quickly. An exception arises when there are fight-specific mechanics that require use of CDs of course or make them disproportionately more powerful. Combats mechanics are just inherently RNG-based, and making the "perfect" decision in each given scenario cannot realistically be done on the fly.

There has been a change in how enchants work. They now use a "real PPM" system that averages the PPM based on several factors, trying to achieve the same number of procs regardless of what class/spec you are using. Windsong is on 2 RPPM, but I'm not sure what the number is for Dancing Steel. It is however likely to be something close, in which case it's significantly more powerful. This comes as no surprise, as it would be awkward in many ways for such an expensive and poorly accessible enchant to be worse than the cheaper alternative. If it indeed turns out to be worse (which I am almost sure it will NOT), I'd expect a fix quickly.

Well, lets do some ballparking.

Windsong is 2 "real PPM", meaning that on average it will proc twice a minute, assuming zero haste. Since a typical rogue runs something like 40% haste from SnD, 10% haste from raid buffs, and 10% haste from gear, we'd expect to see something like 3.388 procs per minute, for an uptime of 1 - (1 - 3.388/60)^12 = 50.2%.

Dancing Steel, on the other hand, is 1 PPM. Neglecting specials (i.e., for an OH), this has the same haste bonus as Windsong (1.694), but a 19% miss chance, hence will generate about 1.372 procs per minute, for an uptime of around 1 - (1-1.372/60)^12 = 24.2%.

Hence, Windsong is up about 2.07 times as much as Dancing Steel; since Dancing Steel provides 1650 Agi vs 1500 random stat, it will be better on the OH provided 1 agi is better than 1.88 of a random rating stat, which is... basically always true right now. So on the OH, Dancing Steel is somewhat better than Windsong - although the margin is modest - while on the MH Dancing Steel ought to be significantly better.

This, of course, assumes that Dancing Steel is a conventional PPM; if it, too, uses the new PPM system, it will have an uptime of about 29.1% on both hands, and thus have a pretty clear advantage on both weapons.

I guess its also better to gem expertise/haste gems in red slots instead of agility/haste. IF the gemmed expertise that you'd be reforging otherwise is being reforged to haste instead.

It has been clarified by Blues now that only Windsong and Elemental Force use the new RPPM system (Windsong and Elemental Force Information - Forums - World of Warcraft). This systems seems to take haste into account for the proc chance, so I'm not sure about those calculations... then again, math has never been my strong point.

Regardless, the question of Windsong vs. Dancing Steel (and the INT equivalent) was in fact brought up. The blue response was as I expected: the top tier enchant is supposed to perform better, though they did add that "there may be exceptions in certain situations". I'm not sure Rogues, at this gear level, will fall into that category; but who knows, there may be certain scenarios! That's why we have the people in these here threads that can do number-magic properly :P

So... the verdict is still out whether or not Dancing Steel or Wingsong pulls ahead; least until somebody does some number crunching math? If Dancing Steel does not benefit from the new proc system as Windsong does, will that still mean Dancing Steel is superior at this stage in the tier? Doesn't Windsong also benefit from haste? So will that have any effect on the Haste EP value for Combat if using Windsong.

The gist of it was that the intended design is for Dancing Steel to be the superior enchant for the vast majority of setups. I assume they simply did not want to issue a blanket statement that people could use to complain later, which is why they added the caveat.

Math remains to be done for sure, but I wouldn't be surprised if Dancing Steel comes out ahead in virtually every possible scenario. But you never know, there may be some setups where it doesn't! I'm sure that as soon as someone finds out, we here will be among the first to know.

Hey, please call me a noob when i say i dont have a clue how to read that script hehe. how does it work? and how do i know what to reforge, gem, glyph, enchant etc. played a year ago then i used spreadsheet, anyone knows where to find this these days? Thank you!