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
Brownsfan I sure do miss Spock Leonard Nimoy one of my favorites. I really felt sad when he passed on many different levels.
I think he would find us audio fools illogical because you cant reach for live sound.
The Elrogs in my amplifier are a smashing success. This solidifies my decision to keep these amplifiers the rest of my life. A premium 300b tube in an excellent designed /implemented amplifier just hit the right spot for my needs. Its has been 6 years of beautiful contentment listening to music. At some point I may replace the original Coincident power cords, That's about it. Elrog,Takatsuki or EML XLS are all worth their cost in a good 300b amplifier. Elrog leads this stellar group of tubes for my taste.
Charles.
JWM, Your comments remind me of the episode where Spock's father was suffering the Vulcan equivalent of Alzheimer's. He began to cry during performance of a string quartet. I have teared up a few times during a live concert, but me system, good as it may be, has never moved me to tears. However, having moved away from Indy, where live music is good and plentiful, to Tennessee, where the opportunities are somewhat sparse, has made my investment in a good system quite logical.