Is this still for purchase? 
I am from the old school of typing [and very fast] and just about to upgrade to one of these new fangled computor type approaches, 
The Caps Lock key needs to be fast and reliable - is this up to the job? 
Can it be used on its own? or do i need anything else? 
 
I have good feedback. Mr Norris Mcwhirter can testify to this. 
 
"Typing, Fastest. Mrs. Barbara Blackburn of Salem, Oregon can maintain 150 wpm for 50 min (37,500 key strokes) and attains a speed of 170 wpm using the Dvorak Simplified Keyboard (DSK) system. Her top speed was recorded at 212 wpm. Source: Norris McWhirter, ed. (1985), THE GUINNESS BOOK OF WORLD RECORDS, 23rd US edition, New York: Sterling Publishing Co., Inc" Barbara is a top bird! - Norris 
 
 
BB