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
Hi Bill,
My CSL is an earlier model than yours.  I bought mine new in Oct 2009 and very likely Israel has made changes since then is my guess. 
Charles, 
One thing for sure, a 1 amp fuse makes far more sense than a 7 amp fuse for a Line Stage. Why would the CSL need a larger fuse than the power amplifier (Frankenstein )that uses a 3 amp rating? 
Charles, 
Charles, exactly.  Those fuses are becoming frustratingly difficult for my old eyes to read.  I could not fathom why a pre would take a 7A.  Also, the filament looks pretty thin for a 7A.  I ordered a fuse for the CSL this morning.  Eager to see what all the fuss is about.