Using a graphic tablet. I had some issues where I couldn't do the full line without zooming out (and I consider that cheating), so I had to do them at a weird angle.

Oddly enough the less I planned on the ghosted planes, the better the lines were but the less accurate they were. I only got the really clean ones when I ghosted once or twice, or even didn't ghost at all. The moment I started going over that, the quality of the line would get progressively worse.

Oh and it's a graphic tablet with a screen. The only thing that is lost on me using this over pen & paper is the texture of the paper. I most likely will never be able to do the lessons with the proper recommended stuff, but I'm not planning to do traditional art, so that's fine with me. Oh and yes, stabilization is turned off.