The bolt is perfectly safe, have you ever seen when to much oil is used and the bolt jumps out?
i do agree that the bolt is quite safe in the ego's and eteks but its not completely faultless.
a friend of mine was chronoing his ego9 but when he fird the bolt came straight out the back and hit him in the face...luckily he was wearing a mask so there was no harm done but i will never again fire one or dry fire one anywhere without a mask on