man i want this

The thing with those props are they are never perfectly balanced and cause all that jitter seen in the footage, that jitter makes the /fc/esc work harder and eat more energy. Try out "HQ DP 4x3x3" they are in fact the most efficient and well balanced prop, i fly them from 2.5" up to 4" and they give amazingly long flights while not sucking at just being a good prop.