Where did you get the Omni ? Its been discontinued for over a year. Its called shopline now . 50/50 is way to thin should be 10%-25% reducer . It will take more coats but for a budget job you can't beat it . I just painted the hood , bumper cover and 1 fender on my sons Corolla using shopline single stage and 3 coats only took 2/3 quart and it looks great. 1 quart only cost $30.10. Get your mixture correct then spray 1 light misty tack coat wait 10 minutes spray a medium coat 10 minutes than a heavy coat repeat if you think you need a 4th coat. That how I do the single stage but the base and clear I do the same.