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
George Lenz gave me a call and asked if he can come over and get the voltage reading across the tubes in my Franks. This way we'll know for sure what the true voltages are.
The Elrog team wants to know and asked George if he can get them.

George is a stand up guy and is making sure that the Elrogs will work reliably in our amps. I commend him for his customer service and dedication.

I'll let everyone know once we get the readings.

Joe

Joe, if possible I would suggest that voltage readings be taken both with the Elrogs installed and with the tubes Israel originally supplied installed.

Regards,
-- Al
Joe,
I received a message from George this morning asking if I could have someone measure my amplifier's plate voltage. This may have preceded him contacting you. If he can do your Frankenstein himself that's ideal. I also greatly appreciate his efforts to solve this problem. Joe I look forward to seeing your results with George.
Charles,