I found this setup for Pokey escape, I don't know if it has been found before, if it has I wasn't able to find any videos about it. It is faster than c-up method, but somewhat slower than the slash method. (video is tutorial-style for beginners, real time is obv. faster.)
http://www.youtube.com/watch?v=amH9AOovffwIt can also be done away from the wall (near the exit) by using z-target to look towards the wall used, so it can be fixed or used as a backup strat in case you miss ISG.