Tube Rolling

I used those tubes from Upscale in my Rogue ST-100, I really liked them and would swap with some Telefunken's, they both gave a nice contrast and kept things interesting. I thought the Brimars had a really nice tone and the telefunkens were a little more dynamic. On the Rogue, I believe these tube were the phase inverters, Rogue told me the phase inverter tubes had the biggest impact on the sound in their amp. For what that's worth.

You might also want to reach out to Brent Jesse.  He is more than happy to share his experience and opinion on which tubes to use in what equipment to achieve the sound / change you are  pursuing.  

In terms of sound and texture.  Since I also have a PL Dialogue Premium.  What combo of Gain (center two) tubes and power tube combo would give you a taste of 300b goodness?

I am using some of Upscale's "Kevin's stash" Gold Lion 12AU7's and they sound great with 0 noise. They have a warmer sound than some of the others. Over the years, I have probably purchased @20 tubes from them. I've had very good experiences buying tubes from them. Same with Brent Jesse. In case you're interested I have a set of 4 reissued Mullard KT88's in my stash that I bought from Upscale and never used. If you end up trying out those Brimar 12AU7's, I'd be interested in your feedback. 

  Veerossi. What power tubes are you using with the Gold Lion 12au7s.  Which Primaluna do you have and would you say the sound is close to a SET or maybe even a 300b amp?