I just bought a Huion H610 Pro for my mac (I'm running on OS 10.9.5) and tried it out on Krita (without the driver installed) and it worked beautifully. Then, after I installed the driver, the pressure sensitive brushes were very blotchy all of a sudden. It's not the tablet (because the lines are perfectly smooth when I use fire alpaca), and I can't for the life of me figure out how to fix it. Here's an image of what it looks like: https://drive.google.com/file/d/0B58YmPxlxc3VMy12WWJtT2hmcEE/view?usp=sharing Does anyone know how I can fix this?

That application "X" works, doesn't mean that it follows that it's not the driver's fault. I haven't tried our Huion on our Mac, because the Huion is in Moscow and the Mac in Deventer, but your picture suggests that we're getting a weird hodgepodge of pressure values from the driver.