the screws do not actually have to be even. there have been a few cases of the carbs actually needing a bit different tuning than one another, there seems to be a bit of variance between many of the stock cv's

Frank

(Former)05 BA tbike pipes, ai removed, Freak, mikuni hsr 42's, 904, ported/polished head, 1mm oversized valves NOW-2010 silver and black tbird