Thanks Jond, should really start thinking about selling gear that has accumulated over time.
Your set up must also sound very musical with the Audio Note DAC & speakers. Some time back had the AN (UK) P2s with 6L6 tubes and enjoyed that system very much.
Have you tried the NOS wide based Mullard EL34 XF1 series tubes with your amp ?
I've compared them to Telefunken, Philips & even against later generation Mullards to which I felt they were IME vastly superior in detail & tone Downside is that their pins are somewhat larger in diameter and stress sockets especially when removing.