Green Screen

I totally agree.  That's exactly what I do too.  When a customer tells me they want a white background I shoot the gray one.  They're always kind of shocked that there's a gray background when they requested white.  Then I show them the first image on the LCD and they are onboard...lol    Hey, here's a quick question for you...  My seamless backgrounds have a wavy or bubley surface to them and it shows in the photos.  Is there some way to make it look smoother?