I don’t know, it mostly depends on the spring weight of the switch, and a little bit of friction from a bump or click mechanism if present. You could try stacking some coins on a regular keycap? If the keycap ends up being too heavy, you could put a heavier spring in that one special key, if that is something you can tolerate.



Indeed, multiple spacebars is what really makes these types of boards work. I like having four of them personally.