its been well documented by jack wood that the design of this bolt is NOT to reduce kick, but to reduce ball breaks / chops caused by force feed loaders.the qua bolt (think thats how its spelt?) is the new bolt released by planet eclipse to stop balls chopping .. consequently it happens to reduce the kick at the same time (this is the bolt i have in my ego) works a dream you may want to contact planet eclipse for details mate but these bolts rock