I've been tempted to have certain projects made in Shapeways sterling silver as opposed to stainless steel due to silvers smoother surface quality. My only hesitation has been due to the "strength" of the material. Using Shapeways materials listings it shows as only slightly less strong than stainless steel but what does that translate into in the real world? For instance i have an idea of how Shapeways steel compares to machinable aluminum in strength . I'd love some insight from members who have projects made of both materials.