"I know a woman who plays her nice Martin with metal fingerpicks. Frankly, I think I'd have saved myself the money and bought a plywood jobbie."
Ebbie, if you have a problem with metal fingerpicks, don't use them. No one will hear you, and your fingerpicking won't necessarily be too clean, in my opinion. I have a problem with people who have a problem with metal fingerpicks.
They are OK on a Gibson, Martin, or any other fine guitar.