No, not too bright with vintage EL34 tubes; still up there though, just below the L700/Carbon pairing. That said, I do often enjoy the L700/Carbon or L700/BHSE for its slightly less accurate and more hyped-up/fun sound vs. the 007/009 (you get a bit more bloom in the midbass and sparkle in treble from L700). And the L700 does benefit from these better amps, but you're past the elbow of the value/scaling curve at this point. The DIY balanced hev90 is an excellent match for L700. The KGST is also good, but at a lower level of performance. I think my warmest KGSShv would also be good, but haven't tried that combo yet.
With L700, I would look for a KGST or a warm KGSShv. Or just choose your preference of 007/009 and go from there (KGST or warm KGSShv are also good starter amps for 009). Current Mjolnir Mini would be too bright though; I'm sure of that.