The Warp Core version always had better power transfer.
The Singularity Core had the system drain resist (which is far better, IMO).
They never had the same kind of bonus.
Might have been a bug, because I was under my FED at the Winter Wonderland looking at the two specs. But the Plasma version as 100% power transfer and this one too. But not it reads only +15%. Sure there are others that have +5 to +15% as well. I did try these and felt the ship wasn't what it could be. 100% is what I am using now for power transfer with a 20% Singularity increase.
I've ended up getting this, to see how it was really. Of course without the 100% power to all system rate had drop by 60%. They could have made it +100%. But other than the rest does seem to help.
Comments
I think you were confused.
The Warp Core version always had better power transfer.
The Singularity Core had the system drain resist (which is far better, IMO).
They never had the same kind of bonus.
Might have been a bug, because I was under my FED at the Winter Wonderland looking at the two specs. But the Plasma version as 100% power transfer and this one too. But not it reads only +15%. Sure there are others that have +5 to +15% as well. I did try these and felt the ship wasn't what it could be. 100% is what I am using now for power transfer with a 20% Singularity increase.
Time will only tell!
Time will only tell!