I think it works both ways,IMO it dont matter if you know its a perk plane or not, what would matter is if you were able to tell who is flying that perk plane. In the right hands they are down right scary to fly against. whether you know its a perk plane from 6k to 200 feet is not gunna matter, someone is probley gunna see you and advise everyone your comming.
The icons of perk planes can disrupt the whole area they flying in, thats whats cool. funny to hear over the vox... oh my god! 262(spt 14, temp, etc...) over field, or the check 6 everybody 262 diving in hard and fast, believe me it livens up the whole area, the 262 or other perk planes dont really become the hunted 90% of the time, they are the hunters like that lion that scatters the whole herd. Dont even have to fire a shot, scream through at 600mph usually screws everybody up, after that, knowing everyone is gunna want a piece of your perk plane has its uses for sure.
It's the icon that does make it exciting to fly . when i see a perk plane I just hope its someone that dont know how to fly the perker plane, because if they do , it is not gunna matter if you know what plane it is, your probley gunna die. I'm no threat in a 262 or any plane for that matter, but they dont know that, all people know is its a perk plane and they hope its someone like me in it.
It's like, who buys a viper or bmw and removes the tags, you want people to know what ya got, (that bling bling thing) teehee. besides a good pilot is gunna kill ya in anything, unless he cant catch you. Good plane or bad plane , icon or not if the pilot can stick it , good luck living. No plane is a suprise to us, not like the 262 was when noone knew about it until it was shooting a plane down for the first time, after that happened we took precautions for the 262 in the areas they were likely to be encountered.