Gold or Platinum Grade of Tubes for BAT Preamp.

Hi, all. I am awaiting delivery of my BAT VK-33. I’m going to replace the 6 stock EH 6922s with the NOS Rocket Logo 6H23-EB, which is a direct replacement for the 6922. My tube vendor has gold grade or platinum grade (which is about $15 more per tube than the gold grade). Tolerances for matched gold grade are 15-20%, while the platinum tolerances are 10% or less. Given that these are small signal tubes, is the tighter tolerance of the platinium grade worth the $$? Is the BAT hard on tubes, thereby requiring the more expensive ones? Thanks for your help.
Voskhods (Rocket logo) made only 6n23p, direct replacement for e88cc6922, and the preferable ones to seek are 1974-1979 period (earlier the better).
The EV version is a different kind of tube, that can stand harder circuit environment, and was made by Reflektor and not so desirable sonically compared to a 6n23p.
I may be wrong but i never came across or seen any Voskhods with the EV designation.
That is my experience with them.


Get the very best be a sport.
@ebm ... I did. I bought the platinum grade.
Are we to debate whether or not OP should spend the extra $15 on closer matched signal tubes for a preamp?

I wonder how much he’s got in cables