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
By the way, in the review by Dick Olsher, it states that Franks are easy on 300B and the anode dissipation is only 25W. Strange...
This makes buying any amp and not just the franks super important that one knows the actual operating points of that amp so when it comes time to buy tubes one can do so with confidence. Also know the current draw of the tube one is buying and confer with the builder that all will be well when using that tube. High quality output tubes are so expensive this research is necessary and when both tube and amp manufacturer agree that a tube is safe to use one has mitigated one's risk.

Hi Crubio,
Not yet, he sent me an email stating maybe in the next few days.
Once he comes I'll post the readings.

Joe