First method: This one uses the same location as the normal walljump, but has an easier way to get to the walljump pixel. Instead of dropping down after the pipe and jumping from the ground, you du a full jump from the edge of the pipe (last possible pixel I think). This works with 2 frame and 1 frame setup and is as fast as the regular setup (even a bit faster for me because I walk less on the pipe using this, but that may be just me doing something slightly different)
Second method (not as fast): As above, but do a full jump slightly earlier than in the first method. You will hit the walljump pixel below the usual one. This one is more difficult to do (no precise indication when to jump) and usually not as fast. I also don't know if it works with the 1 frame setup, so this is only useful if you are not going for anything super fast and find this setup easier than any other one.
These are most likely already known, but I could not find them here. Does someone know if the first one is really as fast as the normal method (using 1 frame setup on both)?