Meta Gem - Skyfire

[TeaLeaf]

Stats are not quite right, it was a 5 man set not my raid set, but close enough.  Gems are in mid change, some are pre-2.4 and will be replaced in due course as stocks allow, so there is defintely some change there to the numbers.  I have to say your results seem counter intuitive and contrary to the much debated EJ workings on their forum.  Might be a bug in the Liv sheet?  

TL.

[Sandrion]

I recalculated the difference manually to check if it's a bug or not, but it seems to be correct.
 
Haste:
(1 / ((1 + (180/1570)) * (1 / x))) - (1 / ((1 + (185/1570)) * (1 / x)))
(1 / 1.114... * x)) - (1 / (1.117... * x))
0.8971...x - 0.8945...x = 0.002857... ~= 0.2857%
 
Fireball damage (untalented):
(649 + 821) / 2 = 735
(((1244 / 3.5 * 3) + 735) / ((1238 / 3.5 * 3) + 735) - 1) / 100 = 0.2863%
 
Fireball damage (talented):
(649 + 821) / 2 = 735
((((1244 / 3.5 * 3) * 1.15) + 735) / (((1238 / 3.5 * 3) * 1.15) + 735) - 1) / 100 ~= 0.3024%
 
 
Thus 6 +damage is slightly better then +5 haste rating in this case. However haste scales a lot better then +damage, so the more you have the better it gets, where as for +damage it's the opposite (every extra point becomes slightly less usefull then the one before it). On the other hand haste also amplifies the effects of lag and such with an equal percentage as it does damage; so you'll need to go a bit over the break even point to see a 'real' benefit.
 
I have to say, this is totally unexpected for me as well.
 
 
By the way, it did forget to add the +12 crit rating of the Chaotic Skyfire Diamond to the calculations in my previous post (it didn't automaticly add it is you select the gem). So the difference between the two gems is a bit bigger.
 
Current fully buffed DPS: 2033,99
-Swapping 6+damage: 2056.61 (+1.1112%)
-Swapping 5haste: 2056.73 (+1.1118%)
-Swapping 12+damage: 2050.74 (+0.8235%)
-Swapping 10+haste: 2050.87 (+0.8299%)
 
Definately worth the upgrade. 0.8ish% is quite a considerable difference (provided that what the sheet says is correct).

[TeaLeaf]

I still think the haste is the right way to go for me, haste is on all the gear I am taking now in SP and it is building fast.  Will do some more research, but I do not see the point in not putting more haste gems into my gear set in place of the current crit/blue gems.  My ingame ping is 27ms, so I do not believe that aspect will cause a problem.

TL.

[Sandrion]

It's still true that, generally speaking, 1 haste > 1 +damage > 1 spell crit. But it all depends on how much of each stat you get per itembudget. Looking at the gems, the order of expensiveness is probably in the same as they're usefullness. Making what's best in a specific case completely spec and gear dependent.
 
But like you said, since SP gear is loaded with haste rating, and you'll quickly have a lot, it's probably the best way to go in the end.