Given that my best half guard pass - the cross wedge - tends to leave me in scarfhold positions (to say nothing of my renewed emphasis on hook sweeps from sitting/butterfly guard), I couldn't be happier to see this new material from long-time favorite, online jiu jitsu guy: Aesopian.
Modified Scarfhold Submissions
In terms of non-GB Seattle instruction, Aesopian's work was instrumental in helping lead me toward both the half guard and the Marcelo Garcia style sitting guard. I'll be curious to see if I am able to incorporate any of this into my game, as well.