Nice, but Customer Service doesn't reply.

This is nice, I got one for my workplace. After buying it I decided I wanted another one for home too. I ended up grabbing that one locally on my way home one day. It turns out there are actually 2 versions of this mouse. The Ergo and the Ergo Plus. I didn't know the difference before. The Ergo only lets you pick between 0 or 20 degrees. The Ergo Plus has an extra wedge that allows you to get the angle up to 30 degrees. It is removable so you have 0, 10, 20, 30 as options on that version of this mouse. The wedge is the only difference between these versions. The mouse itself has a rubbery place for your palm to rest. It is nice, the ball spins freely. You can hit a button to adjust the precision. Coming from other mice, I initially found myself often hitting that button to go "back" on web browsers. The forward and backward buttons are a little hard to get to even after using it for over a week, it is awkward to hit back. I know you can remap these but forward is just a little less awkward. It looks like the wedge can only be found in a bundle, which is exclusive to a certain store. I contacted Logitech and have gotten no answer from them at all to see if I could buy it separately. It seems silly to have to return a mouse to buy the same mouse for the same price just to get a small rubber wedge in the package.

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