Locks and set triggers can be tuned and then manually maneuvered to be much more quiet than in stock condition. Tuning , familiarization, and a little practice will allow from none to a very light click at most. If a deer is close enough to notice, he is close enough to not bother using the set trigger. Well adjusted triggers and tuned locks will allow at least 2lb to 4lb front trigger weights. Quiet cocking of a lock and setting of the triggers should be so easy as to be done with little to no thought or special effort. It requires practice. It is a must to be familiar with your gun for maximum success in use. This "ape" has killed 40/50 out of a climber tree stand, and although "NOT" recommended, on one occasion downed one, reloaded my fire lock in the stand and took a second.