suggestions for left-handed or neutral vertical mouse

shmu26

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Feb 18, 2014
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What is a good vertical mouse for a lefty?
It is for productivity, no gaming
I would like a few programmable buttons
Something comfortable to do work with for hours at a time. I do writing work, but I jump around a lot between various programs and windows, with copy and paste jobs, and looking things up.
By the way, what is your opinion of vertical mouses? I never tried one, but it was recommended to me.
What should I look out for, when choosing such a mouse?