🚀 go-pugleaf

For my home system, I'm about to replace the mouse with a trackball.
My current first choice is the Logitech Trackman, which is basically
hand-shaped, and is unlike any other trackball I've seen in that the
ball is operated by the thumb, while the rest of the hand remains
motionless, effectively "wrapped around" the upper portion of the
device.

Does anybody know of any potential negative aspects of this particular
device?  Specifically, will I end up with a sore thumb in another six
months because all my trackball motion is with the thumb?  My initial
test drives of the device show it to be very comfortable, and easy to
use, but the new thumb motion takes some getting used to.

My gut instinct tells me this is at least as good as, if not better than,
any other trackball design I've seen.  But I thought I'd fish for responses
here before committing myself to the $70 purchase...

-- 
Michael Bryan  michael@resonex.com  "Milk and Cheese in '92!"  |     ,_,
"There's nothing quite like watching your most recent          |    /oo \
crush, and your second-most recent crush, rushing into         |    <>__|
each others' arms..."  --- Miss Almira Gulch                   |    |  U|