The blades will open externally on a tomato. The extra large blade prongs provide a leverage point further away from the center axis, limiting the amount of energy used to open the blades at low speeds to the small amount needed to expand the O-ring. The Miniblaster-4 was made to take full advantage of the energy of today's high speed arrows. It is made with the same threaded steel chisel tip and solid blades as the three blade version, and it's just as tough. Lite is the Sidewinder-3 without the Pathfinder point.
Thicker blades mean less bending and a more reusable head.
It has the same hardened steel chisel tip as the other Aeroheads, which creates a hole plenty wide for shafts which are thinner than the ferrule. The SideWinder-3 is built for penetration. The extra wide cut made by the Pathfinder point means less shaft resistance and deeper, deadlier penetration, especially with larger diameter aluminum shafts. The deep concave cut of the Pathfinder point concentrates a lot of bone-shattering force on a small surface area to break up bone efficiently before the blades strike. The blades are swept back for superior penetration.