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
Update. Just tried the Takatsuki 274B on my GG DAC over the weekend. The Elrog 300B and Takatsuki 274B tubes are match made in heaven in the GG. Expensive as hell for these tubes, but the best sound I've heard from the GG DAC by far. I've tried Psvane 101D, EML 45 mesh plate, and TJ Full Music 300B SE output tubes with Psvane 274B replica, Brimar 5Z4GY, Sophia Electric Princess Rigid Plate 274B, and EML 5U4 rectifiers with the GG.

The Takatsuki 274B is the best built and most immaculate rectifier tube I've ever seen. It exudes quality, as it should for a $800 tube. It looked like it came from a silicon wafer chip manufacturing facility.
Brief update,
So far,so good with my replacement Elrog 300bs. Dracule1, I also wish these tubes weren't so expensive so that more people could enjoy them. They are truly sublime in my amp/system. They simply make music.
Hi, Dracule1, Glad it all works out for you. I am going through a long system upgrade/transit. After I am settled, I will try Elrog again. Cheers.
Hi Joe (Snowpro),
I have to confess, the more I listen to the Elrogs the more I'm in near awe in what they offer. If they prove to be reliable and durable I'll consider them one of my best audio purchases ever. For people who own a high quality 300b amplifier and cherish natural/organic realism of sound, this is your tube. Music is so alive, present and engaging emotionally with these tubes in use. Honestly striking in my system. It's very difficult to bring a listening session to a close. Matthias, you and your colleagues did a fabulous job with these tubes. Thanks.