Many Filipino martial artists want to operate at medium or close range, standing square on to the opponent. My teacher Maestro Mulconnery refers to this as the "cut zone." The image is of the sword entering the opponent’s shoulder and continuing downward diagonally to his opposite hip, where the blade exits the cut zone. Or the blade enters the hip or belly horizontally and exits the opposite side. It makes sense to cultivate an awareness of the cut zone as one of extreme danger.
It is also better to avoid the cut zone, operating out of range or zoning to either side.
In general, it is better to maintain the high guard, wherein the weapon or empty hands are up in order to protect the head and neck. Downward strikes in the high guard are aided by dropping your center of gravity, "falling" or sinking into the strike.
You must be careful when you strike low, because it creates openings at the head. So it’s best to strike low either when you’re at long range or have moved toward the opponent’s back.