Hello, I'm trying to get a white background but it's so hard. I'm wondering if anybody has any suggestions. I have included some pictures. Including the way my strobes are set up. The background still looks Grey. I tried following Zack's tips, but it doesn't seem to be working for me. He doesn't even recommend what kind of strobes you might need. I have 5 strobes The 3 of them have 200 watts and the other two are more powerful and contain 3 light bulbs per each head (250 watts). Do you guys think I should get strobes with more powerful watts? If so what would you recommend? or Is it the way they are set up, cause I did try moving them. Please let me know. I will really appreciate it.