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The cramping wasn't problematic enough to affect my aim but it did make me wonder if there was more to gain from shape. Enter the MM720.
My first impression was bad. There is a notable drop in build quality from the MZ1 especially on the side buttons which have a strange shape and don't feel satisfying to click. But I couldn't argue with the results; despite rooting against it the MM720 would consistently out-perform my MZ1 in aiming tests and in-game. The ~10 gram savings is significant when playing on a glass pad where flick momentum does not dissipate quickly and the shape is simply phenomenal. My ring finger contributes much more control and remains comfortable for hours. A generous application of grip tape further improved my control and made the mouse feel less cheap.
When you put in the time to get accustomed this thing becomes really impressive. This ~$25 mouse matches or beats the weight of $110-200 professional mice currently dominating the market while retaining high performance hardware. You will not find better performance per dollar from a gaming mouse.
Part of that value comes from it being wired. The cable is very light but it kinks easily without using a bungee. You can grab one of those for $8 on Amazon. I haven't thought of the cable at all since installing it and that's a small price for avoiding the weight and charging fuss from an internal battery.
Now that I have several week's experience with this mouse my hunch is to move to even lighter mice to further utilize the glass pad's low friction, although this means transitioning to FTO grip on more expensive mice. I can't say if that move will pay off, but I can say that the MM720 is simply unbeatable in terms of performance vs cost, an excellent gateway to high performance gaming mice, and even a solid choice for an endgame mouse.
