Temporary connection between header pins and pin holes?

Why not using a piece of ESD foam to wedge between your GPS module that has male header pins and a shield with pin holes if you don't want to commit the module permanently to the shield? Be careful not to short anything with the foam.

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You can't see the black foam between the module and the shield though but I guarantee it's there. The connection is pretty good and has been holding together for about a day now. Tomorrow the module will be soldered to another project :)

That's kind of like I reflash (with Optiboot) my Pro Mini's the moment I get a new bag. Only with my finger as a wedge 8)