With IBM's mechanical switches, it's the same mechanism causing actuation and tactile feedback. With some modern mechanical switches, they're separate mechanis

With IBM's mechanical switches, it's the same mechanism causing actuation and tactile feedback. With some modern mechanical switches, they're separate mechanisms, which means that they can disagree slightly. For example, with the Matias Quiet Click switches that I'm currently using, the actuation point is actually slightly past the tactile feedback (you can see it in this graph: https://input.club/the-comparative-guide-to-mechanical-switches/tactile/matias-quiet-click/ https://input.club/the-comparative-guide-to-mechanical-switc... ) Buckling spring (and beam spring) switches have a tactile drop, where the tactile feedback is that the force required to press the key drops off at the actuation point. See what that looks like here: https://input.club/the-comparative-guide-to-mechanical-switches/tactile-clicky/ibm-buckling-spring-capacitive/ https://input.club/the-comparative-guide-to-mechanical-switc... (that's actually the Model F; the M was essentially a cheap flimsy version of the F, if you can believe that: https://input.club/the-comparative-guide-to-mechanical-switches/tactile-clicky/ibm-buckling-spring-membrane/ https://input.club/the-comparative-guide-to-mechanical-switc... ). Compare that to most modern mechanical switches, which have a tactile bump, where the tactile feedback is that the force required to press the key spikes up right before the actuation point, then returns to previous levels. The "standard" mechanical switch of today is the Cherry MX Blue, which shows this very clearly: https://input.club/the-comparative-guide-to-mechanical-switches/tactile-clicky/cherry-mx-blue/ https://input.club/the-comparative-guide-to-mechanical-switc... These are 2 very different feels. The "hip" new switches these days are NovelKeys' Box switches, some of which have tactile feedback more like IBM's, though the drop is less sharp: https://input.club/the-comparative-guide-to-mechanical-switches/tactile-clicky/novelkeys-pale-blue/ https://input.club/the-comparative-guide-to-mechanical-switc... I haven't tried the Box switches yet, but of any of the switches I've tried, based on typing experience: I'd take IBM over anything else. That said, I switched to Matias Quiet Click a while ago, because I'm pretty sure my office mate would have killed me if I brought my Model M in to work.