Wanted to provide some input as to a slight variation on the 2-bar HD combo in the NicoNico combo video. After your activation, getting a slight move forward from the activation allows you to do cl.C, df+D (1) and allow dp+C to connect to start dp+C HDC qcf+C loops. I do this at the moment as my anywhere 2-bar HD, and it gets 779 from cl.C, a little more than before:
cl.C, df+D [HD activate and allow the dash to put you closer to the opponent], cl.C, df+D (1), [dp+C HDC qcf+C]x2, dp+C HDC qcf+C > hcb+C [HDC] qcf+A > qcf+A > K > Neomax
Otherwise near a corner up to around the start position, still do the combo starting with A rekkas into dp+C HDC qcf+C loops as in the NicoNico video for 795 from cl.C.