BB> And why both tunnels if the mouse is the culprit?   If the right
 BB> hand had more cases of it then they may have something since most
 BB> are right handed.

 JN>  Both my original post and your reply would indicate CTS
 JN>  should be prevalent in the right hand.  The left hand
 JN>  (only) was used for CR, and the right hand operates the
 JN>  mouse.

 JN>  Has typing speed increased on computers, with keyboards
 JN>  that don't require such a hard stroke?

I suspect top speed for typing has increased quite a bit, mainly because 
you never take either hand off the keyboard.   This was also true of the 
guys who punched tape for teletype - no need to take the hands off the 
keyboard.  Many a tape puncher could do 80wpm or so punching tape, but only  
maybe 60 on a old mill.

I think the main cause is that you never move you hands off the keyboard, 
it's just hammer away hour after hour for those doing data entry stuff.





 
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