Recently, we recognized that Black can change the order of moves, and reduce White's corner first. Playing the guzumi last seems to be the technically correct order, because this leaves, for as long as possible, and as miai for a threatened second eye. It also makes the refutation of some of White's variations here easier for Black.
We have finished our investigations on this issue now, but the overall result is not affected (details can be found within the variations of our solution; 166). So it will last until the end of 2012, when we will make up our mind to change the order of moves, and to have the guzumi played last.