Overall, I'd say that coding speed doesn't really change as typing fast is not what makes coding fast.
There are some real advantages that I find difficult to quantify, though. I switch between stenography and typing for both coding and writing depending on whether I'm at my desk and I find it hard to express clearly why coding in stenography feels natural and nice. I suppose: there's a certain fluidity when you break things down into semantic words rather than simply symbols.
My thoughts on going down to one-symbol-per-chord:
- Due to the small steno layout, you don't need to stretch your hands to far symbols on the keyboard. - You're not limited to what's on the keyboard. Symbols like ÷ and © and any emoji are now first-class citizens. - There are cases where you get multiple symbols per chord. For example, calling a function `()` is one chord. Writing an arrow like `=>` is also one chord.
Overall, I'd say that coding speed doesn't really change as typing fast is not what makes coding fast.
There are some real advantages that I find difficult to quantify, though. I switch between stenography and typing for both coding and writing depending on whether I'm at my desk and I find it hard to express clearly why coding in stenography feels natural and nice. I suppose: there's a certain fluidity when you break things down into semantic words rather than simply symbols.
Hope that helps!