H. G. Muller wrote on Sun, Mar 3, 2013 03:00 PM UTC:
Wazirs really seem to be awful pieces. Replacing a Knight by two Wazirs (on the Queen-side, moving the Pawn in front of them up one square) make the Wazirs lose even with the help of additional Pawn odds (on K-side) by about 40 cP (WWP vs N: 44%, WW vs N: 31%) This would bring the Wazir even slightly below a Pawn, if N=325 and P=100: (325 - 100 - 40)/2 = 94cP. Could be that classical Pawn odds is worth slightly less than the average Pawn, however. E.g. when the Pawn-odds score of 15% would represent only 90cP, the 6% score deficit in WWP-N would be 36cP, and we would get (325 - 90 - 36)/2 = 100cP, slightly more than the initial f/g Pawn.
I guess I should really measure W vs P directly, replacing the f- or g-Pawn by a Wazir, to see who does better.