Nickel & gold plating is common, but if it were solid (rare because that would be expensive and stupid)... you would be looking at 3 to >5 times worse performa

Nickel & gold plating is common, but if it were solid (rare because that would be expensive and stupid)... you would be looking at 3 to >5 times worse performance than the same sized plated copper plug with a beryllium copper leaf spring. Have a gloriously wonderful day... I could be wrong, but it has been awhile =3