I bought the MX Master 3 and have been using it for a couple weeks. I like it and its functions but my biggest complaint is how my ring and pinky finger are unsupported. I have decent sized hands and those fingers start to tense and cramp and have low blood flow which is annoying (esp. after investing $100)

I went to Staples and came across the Ergo Plus and the Vertical. The Ergo Plus was heaven and I want that one of the two; the two fingers weren’t really supported for the Vertical. Then I see the M570 which has great reviews and its $50 less (older). I’ve been looking at Wacoms but I don’t think I need it with the majority type of graphic design that I do. Maybe later when I have more time to learn and get used to it. I love the Ergo…is the track ball useful for working in Illustrator, InDesign? Planning on returning the Master 3 soon but should I get the Ergo or M570? Thanks for the help!