@aldnorab both sets of my TJ Fullmusic and recent Psvane (6SN7 / CV181) tubes at 24-48hrs hrs did not sound like they do at 100-150hrs. Patience did pay off.
For example, the Psvanes were smooth at first 2-10hrs, then became more brittle and detailed at 24hrs for a short window. THEN, slowly started smoothing out gradually up to 48hrs. Once I got past 100hrs it seemed like they were overly smooth, almost too much so at this point. Kept at it, hoping it would change again. Past the 100hr mark maybe at 150hrs they've balanced out nicely. Still very smooth, not lacking smoothness, not lacking midrange, picked up a little sound stage again, a little more detail back in the picture now with no edge, grain, or harshness now. Not changing now. Maybe stabilized between 100-150hrs.
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ASK: Can you report back after 100hrs and again at 150hrs on what you hear?