Judging from these splits I think I can see dps/events on the outside while in the Brain Room.   Though maybe more logs can help analyse this fight.

Here's Laughing Skull Damage:  http://wowwebstats.com/zq134uupsztzw?a=Gxf1300084c602264a#break

Worst culprits are:

1. Shinzwei 113 hits
2. Deadhli 108 hits
3. Zildo 100 hits
4. Onrique 81 hits
5. Vulk 81 hits
6. Saedo 71 hits
7. Shortlived 65 hits
8. Quisjaa 61 hits
9. Judgedredd 30 hits

Well some of these prob got reduced due to deaths.  And Nuit, Prim, and Lumi got in too, I'll skip em cause they weren't in every single time.    But anyways, the point here is, the lower we can get these, the less we'd need that healer, the more we can dps, the less time we need in there, the less damage we'd take from skulls, the more time on Brain, the less times we have to go in again, yes very circular!

Here's the tedious task to do.   Truly split Brain Room dps.

1.  Wyrmrest:

• The Split:  http://wowwebstats.com/zq134uupsztzw?s=444244-451626
• The Brain:  http://wowwebstats.com/zq134uupsztzw?s=444244-451626&a=xf13000846201ae32...
• Diminish Power Uptimes (~6 sec):  http://wowwebstats.com/zq134uupsztzw?s=444244-451626&ab=64145
• Laughing Skulls:  http://wowwebstats.com/zq134uupsztzw?s=444244-451626&a=xf1300084c601c2fb...

2.  Icecrown (only 20 alive at this point)

• The Split:  http://wowwebstats.com/zq134uupsztzw?s=453238-458548
• The Brain:  http://wowwebstats.com/zq134uupsztzw?s=453238-458548&a=xf13000846201ae32...
• Diminish Power Uptimes (4 sec):  http://wowwebstats.com/zq134uupsztzw?s=453238-458548&ab=64145
• Laughing Skulls:  http://wowwebstats.com/zq134uupsztzw?s=453238-458548&a=Gxf1300084c601c6e...

3.  Stormwind

• The Split:  http://wowwebstats.com/zq134uupsztzw?s=461801-465814
• Never mind, no one made it to Brain Room, too many dead

Next shot!

1.  Icecrown

• The Split:  http://wowwebstats.com/zq134uupsztzw?s=498843-508785
• The Brain:  http://wowwebstats.com/zq134uupsztzw?s=498843-508785&a=xf13000846201d07e...
• Diminish Power Uptimes (9 sec):  http://wowwebstats.com/zq134uupsztzw?s=498843-508785&ab=64145
• Laughing Skulls:  http://wowwebstats.com/zq134uupsztzw?s=498843-508785&a=Gxf1300084c601df5...

2.  Stormwind

• The Split:  http://wowwebstats.com/zq134uupsztzw?s=509848-519729
• The Brain:  http://wowwebstats.com/zq134uupsztzw?s=509848-519729&a=xf13000846201d07e...
• Diminish Power Uptimes (22 sec):  http://wowwebstats.com/zq134uupsztzw?s=509848-519729&ab=64145
• Laughing Skulls:  http://wowwebstats.com/zq134uupsztzw?s=509848-519729&a=Gxf1300084c601e22...
• Well this time, notice the Dimish Power uptime, 22 sec, of our 60 sec window.   Killing/jousting needed improvement there.

3.  Wyrmrest

• The Split:  http://wowwebstats.com/zq134uupsztzw?s=519088-525757
• The Brain:  http://wowwebstats.com/zq134uupsztzw?s=519088-525757&a=xf13000846201d07e...
• Diminish Power Uptime (22 sec):  http://wowwebstats.com/zq134uupsztzw?s=519088-525757&ab=64145
• Laughing Skull:  http://wowwebstats.com/zq134uupsztzw?s=519088-525757&a=Gxf1300084c601e4a...
• Wiping probably, only 6 of us made it to the brain, the next round no one made it to Brain.

Next Shot!

1.  Wyrmrest

• The Split:  http://wowwebstats.com/zq134uupsztzw?s=602940-611959
• The Brain:  http://wowwebstats.com/zq134uupsztzw?s=602940-611959&a=xf130008462021ddc...
• Diminish Power Uptimes (10 sec):  http://wowwebstats.com/zq134uupsztzw?s=602940-611959&ab=64145
• Laughing Skulls:  http://wowwebstats.com/zq134uupsztzw?s=602940-611959&a=Gxf1300084c602264...

2.  Icecrown

• The Split:  http://wowwebstats.com/zq134uupsztzw?s=612904-623142
• The Brain:  http://wowwebstats.com/zq134uupsztzw?s=612904-623142&a=xf130008462021ddc...
• Dimish Power Uptimes (20 sec):  http://wowwebstats.com/zq134uupsztzw?s=612904-623142&ab=64145
• Laughing Skulls:  http://wowwebstats.com/zq134uupsztzw?s=612904-623142&a=Gxf1300084c602287...

3.  Stormwind

• The Split:  http://wowwebstats.com/zq134uupsztzw?s=624342-632886
• The Brain:  http://wowwebstats.com/zq134uupsztzw?s=624342-632886&a=xf130008462021ddc...
• Diminish Power Uptimes (11 sec):  http://wowwebstats.com/zq134uupsztzw?s=624342-632886&ab=64145
• Laughing Skulls:  http://wowwebstats.com/zq134uupsztzw?s=624342-632886&a=Gxf1300084c6022a3...
• Looks like 6 of us made it to the brain

4.  Wyrmrest

• The Split:  http://wowwebstats.com/zq134uupsztzw?s=634384-642945
• The Brain:  http://wowwebstats.com/zq134uupsztzw?s=634384-642945&a=xf130008462021ddc...
• Diminish Power Uptimes (8 sec):  http://wowwebstats.com/zq134uupsztzw?s=634384-642945&ab=64145
• Laughing Skulls:  http://wowwebstats.com/zq134uupsztzw?s=634384-642945&a=Gxf1300084c6022b3...
• Still chugging away with 6 + 1 healer at the Brain

5.  Icecrown

• The Split:  http://wowwebstats.com/zq134uupsztzw?s=644200-650745
• The Brain:  http://wowwebstats.com/zq134uupsztzw?s=644200-650745&a=xf130008462021ddc...
• Diminish Power Uptimes (20 sec):  http://wowwebstats.com/zq134uupsztzw?s=644200-650745&ab=64145
• Laughing Skulls:  http://wowwebstats.com/zq134uupsztzw?s=644200-650745&a=Gxf1300084c6022c7...
• And this was the last time we saw the Brain

Brain dps:  http://wowwebstats.com/zq134uupsztzw?a=Gxf13000846201d07e#break

Add your own pets.

Crusher Kill Times:

• 1:56
• 2:36
• 1:33
• 1:45
• 1:41
• 2:00
• 1:26
• 1:32
• 2:05

Average:  1:50