Psvane vs. Gold Lion tubes

My BK Signiture preamp came with Psvane tubes. In a conversation with one of the techs at PSA, it was noted that the newer pre amps are shipped with Gold Lions and the GL tubes are also available at PSA web store for sale. Can Paul or someone else elaborate on why the switch?

Psvane 12AU7-TII in the BHK preamp and Gold Lion Genalex E88CC/6922 in the BHK power amplifiers. That’s what is fitted to my BHK Pre and the 300s &250s ?

That is correct and maybe the tech just misheard you. The Gold Lions go with the amps and the Psvanes with the preamp.

Thanks for the clarification.