Dave,
AROC, check out the quote and thread link below;

Un-streetrodding a 34 tudor

Quote Originally Posted by BIG-JIM View Post
Being a bodywork newbie I asked "So what do you do when you find a pin hole just hit it with some spot putty?" His reply? "No I poke at it with a screw driver (Phillips)" He could tell by the look on my face I was shocked. "Well now's the time to find out if there is an air pocket there and fix it. If it is all painted and sitting in the sun that air pocket may pop and you don't want that happening after its painted"!