Review on Black PERIMICE-720 Wireless Ergonomic Trackball Mouse With Adjustable Angle By Perixx - Boost Your Productivity by Mark Quarterman

I use two trackballs everyday, the Logitech M570 and the Logitech MX Ergo. So, I am comparing the feel of this trackball to those. This trackball movement feels "gritty". It's like the rollers the ball sits on aren't completely smooth or something. As far as pointer movement is concerned, this is not good for fine movements as the pointer tends to jerk because the ball is not moving smoothly. The fine movement feels "sticky"This device (as far as I can tell) doesn't have it's own driver, but uses the built-in windows drivers. Unfortunately this means no pointer acceleration. If I could get some acceleration on this, perhaps I could knock the speed down a little bit in order to get finer movement when slow. But as it is, when day-trading on five screens, this trackball is inadequate.Now let me tell you about the website. ugh! Very little informat