I thought I was having a delay too because I would be shooting rapidly with a semi-auto rifle but only hear the firing sound after a slight delay. I began to watch my ammo count and noticed that while the sound came later, the rounds were firing with each click. Thought maybe it was part of the hack, that maybe it reduced the amount of times it made the firing sound. I think it would be great for sniping since it would be silent on some shots. I have not tried a sniper rifle though to know if the accuracy has been affected. I haven't had problems with it so far but I only opted for the no-recoil option.