I'm of the opinion, that brushless whoops have been under-propped for a long time. Modern 0802 motors have more than enough torque to spin a wider blade, and steeper pitch than old school whoops. These props finally deliver! I've been cutting down 40mm props for about a year and a half now, and found nothing that compares. These beat them cleanly. Maybe a hair more power, and even more efficient on my batteries. GREAT job EMAX.