I will be designing a show this fall in a venue that has Selador Vivid-R cyc lights, 10 units (20 total) evenly spaced across a 30' wide x 15' tall cyc, top and bottom; I don't know what lenses they're using. When I tried to put a blue wash on the cyc (for a sky), I could not get a wash that looked particularly blue nor attractive. I noticed a lot of dust on the ground row fixtures, but I don't think that's the problem. How should these be configured for the best look. I've seen Seladors do a good job, but these aren't working for me. Any suggestions what to look for would be appreciated. They're controlled by an Ion patched as Lustr 11. I think they are about two years old.