Green/Blue Screen

[iunspoken]

Hey guys, am looking for a portable blue/green screen. Perhaps big enough to have a 2 person mid-long shot. Any recommendations?

 

[DXNMedia]

best impression so far is with Photoflex's CSO backdrop.
Tried many other cheaper ones, but the green is not the proper color, which makes it hard to have good key unless you have top notch lighting setup.

2 pax full shot is a bit tricky to deploy and too tight to frame even with a 10ftx18ft backdrop.
Handling the cloth for such big screen is quite a bitch, especially in tackling the creases.