Jedinite, I recently purchased a pair of Coincident Frankensteins and had an opportunity to audition the Psvane TIIs, Ts, and HiFi 300B tubes. The Ts and TIIs were substantially better than the HiFis, but the difference between the Ts and TIIs was not significant. I was offered the Ts at a discount relative to the TIIs, which was a no brainer. They were subtly different, but I didn't have a clear preference for either, so I went with the Ts based on price.
I was told both the Ts and TIIs were substantially better than the Shuguang Black Treasures.
How the Ts compare to the Sophia RP and Takatsuki 300Bs, I can't say. I asked a fellow whose opinion I respect and he advised sticking with the Ts, which surprised me, in view of the glowing praise you hear regarding the RPs and Takatsukis. Once one gets up to 1K and above for a pair, it gets to be a pretty expensive experiment.