Quoted from Frax:

When he says microswitches, he's not talking about leaf-style switches that have two blades, each with a contact on them. We're talking about the siwtches that have 3 lugs on them, are encased in a plastic shell, and an armature pushes a little clicky nub into the body to activate.
Leaf switches are pretty bloody reliable, overall, aside from needing to be adjusted periodically. MICROSWITCHES on the other hand are absolute garbage, fail way more than leaf switches, and have multiple modes of failure (internally shorted open, internally shorted closed, nub doesn't activate the switch due to bad tension, etc etc etc). Microswitches were great for where you needed to fit a mechanical switch into a smaller space, that's pretty much it.
I don't even think TZ has any microswitches aside from inside the ball trough and start button, does it? I honestly can't remember and I'm too lazy to look up every switch part number.