Ok, I have a Bolian captian that has the efficient trait as well as warp theorist and techie. Additionally, I have a borg bridge officer that has efficient that came with the Amazon preorder. And finally, I saved up and bought one of the expensive exchange Saurians that has the efficient space trait. To complicate things further, I have an efficient Impulse MK IV engine that I earned in a quest.
Now I am hearing that efficient has changed and that my efficient Bolian should have better efficient stats and that I can add one additional BO with efficient that will stack with him. However, new opinion seems to be that if I add my Saurian BO into the mix that an extra efficient BO will not help anymore than only having the one Borg that came with the preorder.
Please dont tell me to go check it out because if I add the second BO that has efficient and it doesnt improve me any then Im out a couple of million credits.
So my question is this: Can I improve efficient skills by adding a second BO with efficient into the mix? Will they still improve further if I add the engine?
On my build Ive been planning to cheat down and go 3/9 on the 4 efficient skills and try to make it up with efficient captain, efficient BOs and the efficient engine.
Honestly, if they dont stack then Im not sure this is a good plan anymore. I worked really hard to make money and buy efficient Saurian BOs for my different characters and now that I find out they may not stack Im a bit miffed. Sure I can still sell them and get my money back but I was hoping that working hard for an advantage would allow me an advantage.
Thanks for you help and advice. Im looking forward to your replies so I can learn what to do with my build.
Happy Prosperity All

Bugshu
Comments
If you are, then it's hard to say, as none of the stuff on test is final yet. I can't recall seeing any notes about a limit on Efficient stacking, but I may have missed it.
One thing I am fairly sure about is that the 'efficient' engines don't have the efficient trait - they just give bonuses to weapon, shield and aux power. I don't believe that they have any special interaction with the efficient trait.
The Efficient Captain trait on Tribble (the test server) now states that "multiple applications of the same rank of efficient do not stack". As bridge officer traits generally seem to come in three 'ranks' (Basic, the normal version, and Superior), I'm assuming that this means two bridge officers with 'Basic Efficient' won't stack - you'll only gain the benefit from one - but a bridge officer with 'Basic Efficient' and another with 'Superior Efficient' will stack.
My advice would be to hold off on paying large sums of energy credits on efficient bridge officers until Season One: Common Ground goes live and we can see whether the changes are included (and do some testing to check how they work).