Awesome. How does the bass compare between the 2? I'm currently enjoying my PS1000's with moon audio black dragon cable upgrade. I recently placed an order for some new tubes for my WA6SE, GZ34 Telefunken, and GZ34 Mullard Fat Bottom, 6FD7's, 6DE7s, 6DN7's. I'm very excited to start my rolling project to maximize this setup.
I have the black dragon upgrade too on my PS1000. I will pop them on shortly and let you know heh heh, what sort of music do you listen to?
I have a pair of Mullard GZ34 too, work great with the PS1000 and anything really. Have found that the Shuggy CV181 works well to tame the PS1000 highs.