Hello. I was giving Black Ink's demo a try since this software is right up my alley and I'd love to buy it. But, unfortunately, it seems to not be compatible with the tablet I own (Huion H610PRO V2).
My drivers are up to date and the tablet works fine in other applications. The Stylus tab in Black Ink's preferences shows that no tablet driver was found. You can draw with the tablet kind of like as if it was a mouse, so there's no pressure sensitivity as far as I can tell. If Windows Ink functionality is turned on (which is required for pressure sensitivity in other applications such as Photoshop) you get this weird behavior where the strokes only come after something like 0.5-1.0 second of lag (which I suppose is the same issue as the one this user reported http://forum.bleank.com/viewtopic.php?f=6&t=1797) while also not having any kind of pressure sensitivity. Turning off Windows Ink in the Huion Tablet settings removes this weird lag/pause but doesn't solve any of the other issues.