I know for a fact that I am a rare case. Of course I can't hit 17bps consistantly, but its as near as dammit. I have never ever ever (thats ever by the way) met or seen anyone who can pull a legal trigger as fast as I can in the 7 years I have been playing. Im not blowing my own trumpet (oo-er missus) but I may just have some unnatural ability. So if you can really shoot at 17bps, then you are a rare case Duggzer0. I could put money on you not being able to. Do you play the PA? I would like to check out your trigger work.
I used to laugh because I remember when the Angel LCDs came out, they had a little ROF counter on them. People used to show me the screen and say "look it says 14bps" but what they didnt know was that the gun used to show the quickest two shots. So for example it would say that between shot 6 and shot 7 the time between them was x milli seconds when in reality you were shooting at 12 or less.
I would say the average person would struggle to get over 12bps.
For the record I do not try to shoot this fast in game, I do not need to, and its purely a freak talent purely for show. I blame Daley Thompson Decathlon the arcade game.