Elrog 300B vs Takatsuki 300B tubes


Has anyone heard the Elrog 300B tubes ? I read an article which mentioned that the Elrog 300B delivers 15% less power than a traditional 300B tubes. Can anyone confirm that it is audible ?

I am choosing between Elrog and Takatsuki 300B tubes. I would prefer the Elrog because it is cheaper and supposedly wonderful but if it really sounds less powerful then I have to rethink.
pani
@ianderson  I have had new Elrogs, purchased April 2018, in my amplifier running almost daily with no issues. Under new ownership, the QC issues seem to have been ironed out.
I have new Elrog 300Bs in my SET monoblocks with about 500 hrs on them without problem..great tubes..
It’s good to hear that the current production Elrogs may have gotten the QC issues properly identified and addressed. As posted early in this thread I had the initial run of the Elrogs 300b and suffered three tube failure episodes.I am  glad others are currently experiencing no failures thus far.
Charles
Adamaly, that’s great news to hear, thanks to you and callaway for the encouraging feedback. As good as the EMLs I’m using now are, having another level of improvement beyond that is a wonderful thing.