Wadia 861 owners: Algorithm A,B, or C?

Any opinions on the relative sonic strengths/weaknesses of the three modes available from the 861 software?
A the others are to provide better frequency response measurements only in my opinion.
I am also interested in other's opinion on the sonic characteristics of the different algorithms. I listen to A, and on the 270 transport, there is a separate enhanced resolution mode which I usually leave off. I am not sure if the enhanced resolution setting is on the 861. The enhanced resolution is sometimes useful for recordings that sound distant since it seems to augment the upper frequencies. Otherwise, it seems that it distorts the frequency response and alters the soundstage not always in a good way. It is really subtle, though.