Review on 🖱️ Enhance Efficiency with Kensington Pro Fit Ergo Vertical Wireless Trackball (K75326WW) by Curtis Thilges

I practically live online. I am disabled and have a power chair on my lap and a monitor on the armrest. I use an ergonomic keyboard on my lap and a trackball on the right armrest of my chair. In my newest chair, the right armrest contains a foldable coffee table. I have a trackball, stream deck, ShuttleXpress for video editing and a Morse code key for ham radios. On the back is a non-powered USB 3.1 hub that supports all of these devices. So space is tight. I used to be a big believer in Logitech trackball products, but when my arm started to hurt from Logitech's slimmer design, I switched to the Kensington Ergo-Fit because it's more comfortable. natural angle for the hand. In that regard, this trackball is AWESOME. The constant strain is much less and I haven't had trackball pain since I got used to the Kensington. It also supports 2.4GHz and Bluetooth connectivity, which comes in handy when your house sends out as much radio traffic as a little star like mine (two geeks in the same house, both radio amateurs == LOTS of RF!). There is a button on the bottom for ejecting the trackball so it can be cleaned, as well as cleaning the bearings in the socket. This is very handy as I had to use the back of a Sharpie for Logitech. You must keep the trackball bearings and the sensors in the ball socket clean, but that goes for all trackballs. If they get stuck with dirt or cat hair or whatever, it won't be accurate and it will be difficult to roll. So keep it up! Now for my only real complaint about the device: the left click button. Mine seems to have TWO click locations, a fake "flick" click and an actual left click. If you press it too lightly, it will feel like you have pressed it, but nothing happens. You have to make sure you're clicking firmly from that false click to the actual click, which takes a little more force than the Logitech. Sometimes you'll find that your aiming point wobbles slightly when you make that hard punch because your thumb is twitching. If you're trying to be as accurate as possible, take your thumb off the trackball BEFORE you left-click and it won't move an iota. This is very important in things like using graphics and games. Aiming in the game can be knocked off easily, which can be a bummer on a ranged attack. But if you get in the habit of raising your thumb a little, a hard left-click won't make the trackball twitch and you'll be more accurate. I didn't notice that with Logitech. My DPI is *probably* too high. I was just thinking about it and will check it out. If anyone knows how to avoid this problem without retraining the thumb I'd love to hear it. Another problem not related to the trackball function. The rubber strips on the underside will detach over time. If you just stick them back on they will peel off within an hour as the glue has already broken. Two of them are already peeling off my Kensington so I'll have to try epoxy or something to reattach them. It's not a high priority because I have a sheet of non-slip liner on the countertop to keep things in place, but that can be an issue for those using it on a smooth non-grippy countertop. In the picture you can see the strips attached to the white box, which raise the Stream Deck for easier use with the trackball hand. (Sorry for the background clutter. Disabled again.) The extra buttons on the trackball are a nice addition. The back/forward buttons in front of the left button are great and I use them all the time. I set the side buttons on the edge under the trackball to Enter and a few others I forgot. But using the "Enter" key on the trackball allows me to copy, paste, and press "Enter" from the trackball instead of pressing "Enter" on the keyboard, which interferes with cursor control. The scroll wheel is very well designed, and the left/right tilt switches on it give you a little more control, especially in games, and the "Click Down" switch on the scroll wheel is perfect for tap-to-talk in voice apps. You stay clean, you get used to the fancy left-click switch and the potential thumb twitch that comes with it, it's a GREAT trackball and far better for your wrist and carpal tunnel health than Logitech's slimmer device.