Re: does pickup with covers sound any different than one without?
There was a thread about this just last week.
I put a nickel cover on a 59 last night and there is a subtle difference. First, it cuts down on the 60 cycle hum you get when near computer monitors etc. Second, it slightly cuts the brightness. Not very much, but a little bit.
For this particular pickup, in this guitar, I prefer it with the cover on it.