Yea, T2 occasionally dips to around 30e, that's how much I paid for my pair as well.
I am quite certain that cable wasn't the only thing that has changed with newer batches of T2, NiceHCK has photos of new units and outside of cable and more tips, I think that they changed the nozzle mesh, appears that they went from metal to plastic - would be a nice thing if someone confirmed that their unit has a metal mesh or they have always had plastic one (or maybe I am tripping?). If they did change the mesh then we might be looking at internal changes as well, but I doubt it would be anything as drastic as ZS5v1/v2... Cable is better looking for sure now and it's a solid question what the mesh might do to the sound.
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I should become a detective... I was also the first one to point out about potential ZS5v2 on the KZ thread, low key proud about this, gimme all of the internet points!!