At the default 0.7 usually makes a standard "between cheeks" wedgie. Around 1.0 and above makes that "beaver tail" wedgie look, higher weight makes longer and more exaggerated underwear. "From above" and kneeling or sitting can get that underwear dragging on the floor look. Remove "ass" and "buttcrack" for a view from the front, optionally add "frontal wedgie".
