Hi all, On Sat. night I am doing the sound at a competition. The show is at 8:30pm, the earliest I can get in is 7:15. The last time I did this, the organizers kept at me, can we begin, can we begin, can we begin. I told them I had not done a balance and they said to skip it. My ear is not so trained that I feel confident doing the balance quickly. Does anyone have any tips for me to try? I don't have any machines that help with this, like RTA or whatever. There are 4-5 channels: one for vocals, one for guitar, maybe one for keyboard or more vocals, two for playback. The room is square with windows along the top of one wall and double doors on the opposite wall. There are two pillars in the audience section. Thanks for any help.