Oh with base material I don't necessarily mean etching yourself. I rarely do that, I mostly use it as-is constructing my circuitry floating above it, suspended

Oh with base material I don't necessarily mean etching yourself. I rarely do that, I mostly use it as-is constructing my circuitry floating above it, suspended by its ground connections. It's somewhat similar to the Manhattan Style. It's also very easy to built custom shielding enclosures this way (all you need is a somewhat powerful soldering iron).