I had a Logitech MX revolution which I loved but dropped it way too many times and it finally broke. I decided to try the Expert Tackball after reading all the positive revues at Amazon. People really love this thing....
Well not everyone. I really like the control, would seem to work well at the pixel level if editing in Photoshop. The ability to create contextual menus to do ANYTHING and apparently any number of them, makes up for having only four buttons. The scroll ring was very nice.
The problem I have is how long is it going to take to retrain my fingers for doing completely different movements and tasks. It feels like starting all over again, like when I first tried to get the cursor to go where I wanted it to go on the screen and it was a very shaky line.
I'm in a bit of a hurry to do what I want to do and not spend time retraining my fingers to use four buttons and work around what is essentially a heavy billiards cue ball in the middle of my palm while trying to learn new button finger combinations. Perhaps I'm missing something and am just impatient before body memory can take root, it's only been 2 days, but I don't find right click, left click mouse actions as having any relationship to trying to get access those four buttons with a very large ball in the middle of the field.
I picked up an MX 1100 cordless Laser Mouse (Logitech) and this thing is sweet. It's as if someone updated the top of the line MX Revolution and got rid of all the annoying things and unused buttons and added some very useful features. Very well thought out. A little larger, but just the spin wheel is such a huge improvement, i fell in love instantly. Very precise and I set the sensitivity very high so I only have to move the mouse a small amount, so it's action is a bit like a trackball, or at least one doesn't have to move their hand all over the place.
I thought of keeping the Expert track ball for precise editing but I doubt I will use it. I really dislike having to relearn to use a pointing device efficiently instead of doing what I want to do!