I guess your other senses become more sensitive when you lose one sense, so that discerning different formations of little bumps with your fingertips becomes more doable
If you’ve already gotten used to a specific layout, you should stick with it. Everything else just messes with your brain to the point that you can type alright with each layout, but not as fast as you used to on ONE keyboard.
If you’re feeling flirty, why not? Some people will like it more, some less.