Anyone use the Logitech Trackball?

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1

I was just curious if anyone else uses these for gaming/editing.

The new ones look like this

 http://www.logitech.com/en-us/mice-pointers/trackballs/wireless-trackball-m570

I've got an old corded one that I use that I took from my brother as compensation for money he owes me and I have been using it for a few years and I absolutely love the thing

2

I used to use one for everyday stuff, after you get used to it, they can be very precise.