I have found that with most mechanical heads you can take angled shots without any problems. just keep the angles reasonable, and make sure your bow is tuned properly! Bow tune has more to do with deflection than the head it'self in most cases( may opinion only). The warheads have a long tip that sticks out past the blades wich "grabs" the hide and makes the head stick, so I really don't think you will have a problem with quarting shot.

TAKE YOUR KIDS HUNTING AND YOU WON'T BE HUNTING FOR YOUR KIDS