Actually, this head has several advantages: (1) It' s legal in states that require a 7/8" minimum width in the closed position. (2) It only has small exposed blades in flight, leading to better accuracy. (3) Delayed opening is good because the head penetrates most of the way before the " wings" force the larger blades open. This reduces the chance of a glance off or cartwheel.

Also, they do leave a fairly decent entrance hole (the wings are 7/8" wide. If I were to shoot mechanicals, I' d give them strong consideration.

The makers of Sonoran are renowned AZ bowhunters who' ve killed some monster mulies and coues at 50 and 60 yards, so these heads must be pretty accurate.