I picked up the goggles from Uldaar last night and started looking at where/when I should use them. This got me comparing the offset i226 gear to the T 8.5 gear to T 7.5 with our 4 piece set bonus
Below are a bunch of numbers and comparisons. Im assuming that it would be unwise to break T 7.5 4 piece in 25 man raids as the 5% to CH & HW is such a great bonus. that means yu will be waiting on 4 piece T 8/8.5 bonuses before you swap. I did not include the T8 gear because the permutations would become kind of crazy.
that having been said here is how I THINK it plays out.
Compare offset T8.5 to i226 Uldaar gear (assume T8.5 is the focus, so the +/- shows T 8.5 compared to offset)
for socket bonus, T 8.5 is 1st
Head
Steamworker's Goggles
[Steamworker's Goggles]
T 8.5
[Conqueror's Worldbreaker Headpiece]
Compare
Item Comparison Tool - World of Warcraft
-22 mp5
+2 SP
+59 Haste
socket Bonus (+9 SP vs +8 haste)
Shoulder
Amice of the Stoic Watch
[Amice of the Stoic Watch]
T8.5
[Conqueror's Worldbreaker Spaulders]
compare
Item Comparison Tool - World of Warcraft
+4 int
+57 haste
-10 sta
-57 crit
Chest
(3 pieces here. T 8.5, Haste chest and Maly Crit Chest. I will compare both offset pieces to the T 8.5)
Quartz-studded Harness
[Quartz-studded Harness]
Tunic of the Artifact Guardian
[Tunic of the Artifact Guardian]
T8.5
[Conqueror's Worldbreaker Tunic]
compare
Item Comparison Tool - World of Warcraft
Harness vs T8.5
+5 int
-14 Sta
+4 mp5
+60 crit
-66 haste rating
+2 SP
Tunic vs T8.5
+4 int
+4 sta
+7 mp5
-10 crit
-22 SP
1 blue gem
socket (+7 SP vs +4 crit)
Hands
(3 pieces here, T8.5 gloves, Maly gloves and Gloves of Augury. I will compare both offset gloves to the T8.5)
Glove of Augury
[Gloves of Augury]
Winter spectacle Gloves
[Winter Spectacle Gloves]
T8.5
[Conqueror's Worldbreaker Handguards]
Compare
Item Comparison Tool - World of Warcraft
Augury vs T8.5
+8 int
-21 STA
-20 MP5
-12 Crit
+57 Haste
-10 SP
+ 1 Yellow socket
Socket Bonus (+7 SP vs Nothing)
Winter vs T8.5
+2 int
-8 Sta
-25 mp5
+48 crit
+9 haste
-9 SP
+ 1 Yellow socket
Socket Bonus (+7 SP vs Nothing)
Legs
Leggings of the Stoneweaver
[Leggings of the Stoneweaver]
T8.5
[Conqueror's Worldbreaker Legguards]
Compare
Item Comparison Tool - World of Warcraft
+5 int
-14 sta
-9 SP
1 Blue Gem
Socket Bonus (+6 int vs 2 mp5)
Assuming you have the following sets, here would be BiS i226 gear:
Haste
4 piece T8.5 with Quartz-studded Harness (Chest)
Crit
4 Piece T8.5 with Amice of the Stoic Watch (shoulder)
MP5 (crit secondary)
4 Piece T8.5 with Glove of Augury (hands)
4 Piece T8.5 with Steamworker's Goggles (Head) is a good secondary option
MP5 (Haste Secondary)
4 piece T8.5 with Quartz-studded Harness (Chest)
MP5 (max mp5, no 4 piece bonus)
Steamworker's Goggles + T8.5 Shoulders + T8.5 Chest + Winter spectacle Gloves + T8.5 Legs