Interesting find on Dulfy's page:
http://dulfy.net/2012/06/25/black-hole-comms-and-gearing-in-1-3/
Hey everyone, with Group Finder arriving in 1.3 to reward Black Hole comms for running Hardmode FPs and storymode tier 1 operations, obtaining black hole comms is quickly becoming a hotly debated topic, I have drawn up a little chart to show you exactly how much Black Hole Comms you can get per week when patch 1.3 arrives and how long you can expect the gearing up process to be.
HM FPs & SM EV/KP: You get 5 Black Hole comms daily as group finder rewards for letting it choosing a random Tier 1 or Tier 2 Harmode Flashpoint for you (Note that Tier 1 and Tier 2 HM FPs share rewards, meaning that completing one will lock it out for the other). That is 5x 7 days = 35. You also get 5 Black Hole Comms when you use the group finder to randomly select either storymode Eternity Vault or Karagga’s Palace. Since each operation have a week long lockout, you can get 2x 5 = 10 per week.
(http://dulfy.net/2012/06/25/black-hole-comms-and-gearing-in-1-3/)(http://dulfy.net/wp-content/uploads/2012/06/groupfinderui_thumb.jpg)
(http://dulfy.net/wp-content/uploads/2012/06/groupfinderui.jpg)
Rakghoul Weekly: Running both HM Lost Island and HM Kaon Under Siege.
(http://dulfy.net/wp-content/uploads/2012/06/rakghoulconflict_thumb.jpg)
(http://dulfy.net/wp-content/uploads/2012/06/rakghoulconflict.jpg)
Black Hole weekly: Doing all the Black Hole dailies once.
(http://dulfy.net/wp-content/uploads/2012/06/bhweekly_thumb.jpg)
(http://dulfy.net/wp-content/uploads/2012/06/bhweekly.jpg)
Storymode Explosive Conflict: 2 Black Hole comms per boss, 4 Black Hole Comms per chest. There are 4 bosses and 3 chests in total, giving you 4×2 + 3×4 = 20 Black Hole Comms.
Explosive Conflict weekly: Defeat Colonel Vorgath in any difficulty.
(http://dulfy.net/wp-content/uploads/2012/06/galacticcrisispoints_thumb.jpg)
(http://dulfy.net/wp-content/uploads/2012/06/galacticcrisispoints.jpg)
Nightmare Karagga’s Palace: 2 Black Hole Comms per boss for first 3 bosses, 3 Black Hole comms per boss for last 2 bosses (the Black Hole comms are located in a chest after you defeat the boss). That is 2×3 + 3×2 = 12.
Hardmode Explosive Conflict: 4 Black Hole comms per boss, 4 Black Hole Comms per chest. There are 4 bosses and 3 chests in total, giving you 4×4 + 3×4 = 28 Black Hole Comms.
Nightmare Pilgrim: 4 Black Hole Comms per week.
(http://dulfy.net/wp-content/uploads/2012/06/npweekly_thumb.jpg)
(http://dulfy.net/wp-content/uploads/2012/06/npweekly.jpg)Top Raiding: 495/131 = 3.78 weeks ~ 1 month
Middle Raiding: 495/99 = 5 weeks
Pugging via Group finder: 495/59 = 8.4 weeks ~ 2 months.
Reality: Black Hole Belts/Bracers/Implants/Ear may not necessarily better than Rakata ones. This would shave off 170 Black Hole Comms (325 Black Hole comms is the new total), allowing you to get full set in 2.5 weeks, 3.3 weeks, and 5.5 weeks respectively.
Want get it faster?
Do you have another character that is also level 50 and can run HM FPs & operations? If so, you can earn Black Hole Comms on that character, buy Black Hole pieces for the character you want to gear up, and then rip out the mods to put in legacy gear appropriate for the character you want to gear up. Mail it over, remove the mods, put on whatever Columi/Rakata shells you have to maintain the set bonus.
Lets do an example. Say I want to gear up my commando alt with my sorcerer main. I can earn Black Hole Comms on both characters. On my sorcerer, once I have enough Black Hole comms to buy a piece, I can go to the fleet vendor and purchase a commando Black Hole piece (i.e. chest). Next, I head over to Coruscant on my commando to purchase the trooper legacy gear appropriate for the slot (remember, armoring are bound to the slot, so you will need to purchase the corresponding slot in the legacy gear for the armoring to transfer over). In this case I would be purchasing the Trooper Renowned Chestpiece.
Once I have the Trooper Renowned Chestpiece, I would mail it over to my sorcerer main who then rip off the mods from the Black Hole chest and put it on the Legacy chest. Finally, I would mail the Legacy chest back to my commando alt. If I don’t need the set bonus, I can save some credits by just wearing that legacy piece. Otherwise, I will need to remove the mods again and put them on a Tionese/Columi/Rakata shell to retain the set bonus.