Manual states:
"Drive — pushes all values in the velocity curve to the outer extremes. High Drive amounts mean you will get to higher velocities more quickly. Low amounts mean you will rarely reach high velocities unless you press the pads very hard.
Compand — simultaneously expands and compresses note velocity. When set to values above zero, Compand forces incoming notes to the outer boundaries of the velocity curve so that they play either loudly or softly. Compand values below zero force note velocity towards the midrange."
I'm having hard time understanding what is the difference between the two. Any smart person could help?