The point of a tactile keyboard, for me, is that you feel the switch actuate before the keycap bottoms out. I still bottom out, but I'm not looking for that to indicate actuation anymore. On cheap boards, that's the only indication there is. On a cheap board, your bottom out is a motion stopping impact which is bad for you after 50,000 or so of them. "It's ok, the circuit board broke my fall." Blindly tap your finger on the top of your desk 50 times in a row and see how that feels.
I speculate that when I bottom out on a tactile keyboard, I'm already easing the strike pressure. Bottom out is not an indication, as much as it is an expected "bounce". There is no doubt I am faster and feel better on a Filco with browns, than on that white Apple wireless thing.
I don't think intentionally trying to not bottom out is necessary. If you try to amp up your typing speed on a good mechanical switch board, I think you'll stop anyway.