I think it should be possible to do Third Level 1S1W even faster if you have Halph run through the east corridor as he did on the first run, but as he comes through the middle, tap him to follow Beethro into the south corridor and put him on the east side of it such that Halph catches the queen before it goes into the inner chamber. In principle, that should mean you don't have to send Halph over to the north airlock, or Beethro to the orb that closes the trap yellow door again.