Hostile towards everyday nonsense.
I say that, yes, the difference in sound between the E9K and Lyr was definitely much more than 5%. I was mainly speaking of SS amps vs the E9K. Going from SS to tube/hyrbid is like a 20% change in it of itself. Not exactly performance-wise but sound signature change.
Honestly, you had crap tubes with your Lyr. I followed your journey. You should hear it with better tubes.