I too was concerned about the size compared to my old MTO and was pleasantly surprised by the good fit to my hand.

Pleased so far after 2 days of use, highly recommended.

I’ve been looking for a replacement of my MTO for a couple of years and after using one for over ten years, I’ve even had to take my “new” model and swap parts over to the “old” one. Seems to kinda work but the shininess of both balls (I couldn’t word this any better way) has gone and the metal rests are half worn.

Before I admit defeat and give in to Logitech, I was wondering if you had experienced the same problem with your mice; during daily use and even in gaming, I find the mouse pointer speeds up and slows down at random and I have to keep changing the settings via Intelipoint. It even cuts out completely at times, making the disconnect/connect USB sound. As you can imagine this can be quite frustrating mid-chopper flight in BF3. I’ve done the usual hardware 101 stuff but just thought I’d ask if you’d come across this issue?

Anyway, ramble over, good read and I’m off to read the 4 month follow up now.

Jack.

As with my original Trackman; the Scroll Wheel still functions the same with a push-hold activating scroll/pan feature with ball control (awesome panning/scrolling feature that is acceptable substitute for L/R wheel movement panning with other mice). Many years of comparing optional designs always brings me back to wireless trackballs that incorporate thumb-balls vs. finger-balls (allows fingers to activate the buttons for things like drag/drops, etc.). If you have overlooked the push-hold/scroll-wheel pan/scroll-with-thumb-ball, try it at your earliest opportunity.

Logitech has effectively addressed/updated the two key issues I have always had with the predecessor (dedicated fwd/back buttons, elimination of corded-dongle).

I like the Unify Dongle; allowing simultaneous connection to multiple additional devices (keyboard, mice, etc.) with one sub-compact USB-dongle-bud.

The only thing I would suggest for Logitech is that it would have been really nice if they could have built into the design an “optional” Bluetooth connection (allowing the user an option of Bluetooth or Logitech proprietary Unifying connection, activated via toggle switch on device). The Unify-bud can be “just left in” laptop or main computer, but is easily forgotten when moving to alternate computer (I suggest having a backup, 2nd Unify-bud $10, stored alongside battery in device for these just-in-case scenarios).

The extended battery life is also a nice upgrade to predecessor. I am a believer in single AA battery vs. other power options (like rechargeable, multiple bat’s, AAA’s, etc.). 18-months on one AA = best option IMHO.

And finally; to get up-to-speed providing single-thumb-movement of mouse across multiple extended displays – don’t forget to WAX YOUR BALLS … I like carnauba-wax, but most options provide slick results as well.

M570 Rocks

I use mice for all my life… but my wrist… and my forearm…

You have experience with the Logitech TrackMan Marble. You think Logitech M570 is better? Use thumb is better than forefinger?
I’m afraid of using ball by thumb instead of forefinger.

Do you someone have experience with these?
Logitech Wireless Trackball M570
Logitech Marble Track
Logitech Cordless Optical TrackMan

Which is the most comfortable?
I work with SolidWorks 3D construction software.

THUMB or FOREFINGER ???

Thank you for your response.

I’ve been using Logitech trackballs since the late eighties, with the original, beige, 3-button, wheel-less Trackman Marble that felt like a comfortable old baseball glove in my hand.

When I saw that they were being replaced by the “sharp-edged” design, I ran out & bought 2 wheeled back-ups.

After I’d worn those out, I reluctantly got one with the “sharp-edged” design & discovered that they weren’t as uncomfortable as they looked & have been through a few. I now have an M570 & love it.

I still missed my “comfortable old baseball glove” though!