We seem to have trouble getting a render to look accurate.  A linked regular photo example is below and but I can't attach a render example yet of the product.  I've looked through a number of posts, SWW presentations, etc, but there isn't much on clear plastic.  We use SW2011 PhotoView 360 on a more than capable machine.

The appearance is polycarbonate, but it doesn't look right.  This might have something to do with the scene settings, but I'm not sure.  Light Cards seems to have decent properties, but I don't like the colors in the reflections, and of course I clear out the background.  We'd prefer a plain white background.  Any suggestions for scene controls, light controls, etc?

Here's a regular photo of one of our products.

One of our products similar to what I'm doing.

Thanks!