Elrog 300B vs Takatsuki 300B tubes

Rob,
As you read above, Jeff heard my system today. He knows my system intimately and thought as highly of the Takatsuki and EML XLS as I do. My advice if you can swing it, get the Elrogs for your Frankenstein. Start at the top with this combination, there'll be no looking back or second guessing.
Charles,

Charles, I plan to do just that. I feel like the kid in school looking over your shoulder for good notes. I really trust your ears, Brownsfan, Rebbi, Jwm, too, amongst others. All your musical values are very similar. Looking forward to your continuing comments regarding all things audio.

Oh, forgot to mention, I got a High Wycombe 378 in anticipation of the Franks purchase.

Rob,
That was a wise decision. That is the hard to find fat bottle version I believe. You're on the right path for sure.

Charles, I take it you can just drop in the Mullard GZ37 in the rectifier location on the Franks? I'm still pretty new to this game...

P.S. I kind of wish there hadn't been such a positive impression of these Elrog tubes. I was all set to spend half that on a used pair of EMLs (in 6 months). Now the list of desired objects is increasing, and the funds absorbed by them is doing the same.