Let's not confuse the issue. We're not talking about a vintage mudbucker here.
It was the standard sidewinder i was referring to.
Looks like I confused it with the mudbucker reference in the other post, yes..
Nevertheless, if they are magnetic they will affect the magnetic field - but if they are put there for looks only,
they are probably not.
Now, why bother to put cosmetic screws on a blade pickup?
Are they using up surplus mudbucker covers?