Updated Heroic Heartpierce is still better than Heroic Ribspreader. However last night someone pointed out that double Lungbreaker score slightly higher than Lungbreaker/Heartpierce. I tried it and the two setups produce nearly identical dps, so go for whichever you can get first.

As for non-heroic versions, I have not checked that, perhaps Ribspreader outperforms Heartpierce at 264 iitem level. You can check it yourself. It also probably depends on your stats.

In the last version of the simsheet, [Flesh-Carving Scalpel] is listed as ilevel245 instead of 251, and its damage range is listed as 239-345 instead of 230-345.

Thanks for the great spreadsheet. I just wanted to point out a little bug althought it doesnt really affect any of the dps calculations; when you select talent points in "Endurance" the stamina points on the gear tab do not change.

Hey mavanas.. do you have any information if non heroic Heartpiece > Ribspreader anyway, or just the heroic version?

I have added most racial bonuses, except for the Blood Elf one. I also fixed a bug with horde names and trinket procs. Fixed some data entry errors brought up on the previous page. All links have been updated.

Gmpotu, the purpose of these tests was to try to find out which hypothesis best explains volatility of EP values, built in RNG or variability of EP estimates as you change the stat. Let's introduce some notation not to lose track of your tests. x(A) is dps/point value of haste at A deviation of haste from your base gear. We are trying to find out x(0). We know that x(-200)=2.04 with confidence interval of (1.98, 2.10); x(-50)=1.96 (1.74, 2.18); x(+50)=2.11(1.89, 2.33). First thing, as you can see increments of 50 do not give you very precise estimates of dps/point of haste. SE of 0.11 is too large for trying to precisely estimate dps/point values of around 2. Second, x(-200) is more precise, but it might be scewed because we are measuring the dps/point at a point 200 haste below our gear level.
I am guessing changes in dps/point when increasing or decreasing haste are second order but to be sure, you can try this. Use same gear as for the tests above, but this time reduce haste by 200 in the EP adjustment range in the gear page. Then rerun EP calcualtion (sorry I know it takes long). Then you will have an estimate of x(-400) which has same good precision as that of x(-200). The you can see how far it differs from x(-200). If x(-400) does not differ much from x(-200), then variations in x(-50) and x(50) are largely due to RNG.

You should also try to plug your gear into Aldriana's spreadsheet which does not have the effect of RNG. While his modeling is different, you can still get a pretty good feel for how much and in which direction dps/point values change as your haste decreases by 200. If you can't extract dps/point values from Aldriana's spreadsheet, just observe how much EP values change when you reduce haste by 200.

Let me know what you find out.

I ran the EP calculation again this time with -200 haste on the gear page.
dps/pt 2.13 this time. So
x(-200)=2.04
x(-400)=2.13
x(-50) =1.96
x(+50)=2.11

I'm not sure what to think now. I'll try running ald's sheet tonight.

On a side note I did the same test with hit.
x(-100)=1.94
x(-50)=2.12 run 1 ,10k iterations
x(-50)=1.99 run 2 ,10k iterations
x(+50)=2.04
x(-100)=1.85 -200 haste

I put my gear into Aldriana's sheet and it was almost 1000 dps difference. I don't think his sheet takes into account ToTT on cool down being applied to you from another rogue or use of saronite bombs. I'm also not sure if he implements using the new T10 - 2 set bonus because even disabling bombs and ToTT on CD your sheet is still about 150-200dps higher but that may be an odd RNG thing.

I have some questions regarding the usage of haste cooldowns, especially the right timing of those. The topic was brought up here Ensidia. So my understanding is that blade flurry, heroism/bloodlust and slice and dice synergize due to the multiplicative stacking of their effects. I wanted to simulate the effects with different settings in the dps strat section, but apparently there are no options regarding cooldowns in it. Is there any possibility to test severeal cooldown strategies with this tool? The only ressources I could find where an wowwiki article about haste and the old Rogue Theorycrafting Think Tank article.

You can see how the current haste cd's are used in the combat tab, but it's not exactly that user friendly. If you don't mind meddling with the formulas, you can change the timing yourself to accommodate your needs.

It seems like the default option matches BL with hyperspeed + speed potion and when Hyperspeed expires, Troll racial with BL. I don't know why Hyperspeed and Troll racial aren't used at the same time, but maybe you start to overlap envenoms too much. Changing these to all be used at the same time, increased my dps slightly (~40 dps).

EDIT: I have not noticed any problems stacking Berserking and Hyperspeed Accelerators together, unless something was changed recently.

No the spreadsheet is not designed to let you choose when to use haste related cooldowns, such as bladeflurry, shard of the crystal heart, troll berserking, and haste pot. It is assumed all those buffs are stacked, and used along with heroism on the 10th second and then as soon as the cooldown runs out.

There is one exception. Since I think it was mentioned that troll berserking cannot be activated at the same time as hyperspeed accelerators, the simsheet is instructed to activate berserking on the 22th second. Either way the timing of the cooldowns is set in stone and they are timed in a way to stack additive and multiplicative haste buffs.

Regarding the underlying theory, nothing has changed since the time when it was determined that stacking haste buffs is beneficial. It is a pretty straightforward math. The part regarding stacking multiplicative buffs can be found on wowwiki. But it is also true that using additive buffs while multiplicative buffs are active is better than using them separately.

For example: Let's say you have 10% haste from gear. You can use a potion with haste rating which will give you another 10% additive haste, and you can activate a buff that will give you 40% multiplicative haste. Each buff lasts 10 seconds. You can either use them simultaneously or let the potion last first 10 seconds and the 40% buff last the second 10 seconds. Let's say you have only a 2.6 speed weapon.

Case 1 (Stack). First 10 seconds: Haste = (1+10%+10%)*(1+40%). With that speed you will do 10/(2.6/haste)=6.46 attacks. Second 10 seconds: Haste = (1+10%). You will do 4.23 attacks. The total number of attacks in 20 seconds is 10.69.

Case 2 (Separate): First 10 seconds: Haste = (1+10%+10%). With that speed you will do 10/(2.6/haste)=4.62 attacks. Second 10 seconds: Haste = (1+10%)*(1+40%). You will do 5.92 attacks. The total number of attacks in 20 seconds is 10.54.

So the benefit of haste when you stack additive and multiplicative buffs is higher. Normally however, the benefit you get from this timing is not that big. So the rule of thumb is that stacking is not worth it if you delay the buff for so long that you are not going to have time to use it again. Only if you are sure that the delay is not going to lower the number of times you can use a certain haste buff, then you can try to delay and stack some buffs.

Though it is true that on-use trinkets lock you out of the hyperspeed accelerators it is not the case with Troll Berserking nor Orc Blood Fury. I am able to run Adrenaline Rush, Troll Berserking, Hyperspeed Accelerators and Blade Flurry all at the same time.