I have hard time seeing how it may be worth my effort. Switching layouts will probably be very painful and result in productivity drop - and then if I do it, it would be only working on the computers I specifically configure for that purpose. I wouldn't be able to use it on anybody else's computer or on any mobile device. If I were professional typist, the speed increase might be worth it, but otherwise I'd stick with the devil I know and everybody else does too.