I did the Q010 vs HD800 too. Again the Qualia came out below. The has enhanced highs and hence seems fast and pinpointed because it makes strings and voices rise out of the less pin-pointable bass. Also the Qualia had worse measured distortion performance if I remember, god they were comfy though. YMMV.
My MK1 vs HD800 was done on a KGSS but I really doubt the BH would have made any difference in the end to how it turned out.