In this vlog, I’m breaking down the JOOLA Pro IV lineup to answer a question I get all the time: how much does paddle shape alone change power and control? The key here is that the materials are the same across the Pro IV family, so when we see differences, we can largely point to shape, weight distribution, and balance. To make that measurable, I’m using two numbers that matter a ton in real play—swingweight (how heavy the paddle feels through the swing) and twistweight (how stable the face is on off-center hits). I walk through what swingweight and twistweight mean, then I rank each Pro IV model using the measurements. For swingweight (a proxy for potential power), the numbers came out: Scorpeus 78.5, Hyperion 78.6, Magnus 80.9, Perseus 81.1, and Agassi 81.9. For twistweight (a proxy for control/stability), the lineup was: Hyperion 7.8, Agassi 7.9, Perseus 8.1, Magnus 8.4, and Scorpeus 9.0. The takeaway: if you want more “free power,” you’ll typically lean higher swingweight, and if you want more forgiveness and steadiness, you’ll lean higher twistweight—shape is driving those differences in a really clear way here.