Tactiles must have grown very heavy since 2018 if T1 is considered a ‘medium tactile.’ It used to be considered on the low-end of heavy, a sort of toned-down Zealio V2.
Then again, it was always dubious that MX Clear would be considered a “medium tactile,” as it isn’t much more than a Brown. So much of the ‘tactility’ is just the spring.
I would say that a good standard for a medium tactile might be SP Star Purple. It feels to me like a toned-down T1, and doesn’t feel at all extreme. SP Star Magic Girl may be similar, maybe even Kailh Polia.
T1 was supposed to be an alternative to Zealio V2, I think. And Kiwis feel heavier than T1, to me. I would classify Kiwi as a heavy-tactile, on the lower-end. Zealio V2 and Holy Panda being standard heavy tactiles. Something like Zykos or Neapolitan being on the high-end of heavy tactile. Any frankenswitches greater than that should be considered super-heavy.
BOX Brown might be the low-end entry-point to medium-tactiles, as it’s noticeably more tactile than MX Brown. MX Clear, Ergo Clear, and Zealio V1 could be considered light-medium.