I am using this adapter with an OEM Sony DS3 + a softmoded PS2 console.
As you might know the DS2 has 8 pressure sensitive buttons whereas the DS3 has 6 pressure sensitive buttons:
PS2: (Triangle, Circle, Cross, Square, L1, R1, L2, R2) + D-PAD
PS3: (Triangle, Circle, Cross, Square, L1, R1) +...