it doesn't count in a PL meet.
you need to clap the bar to the chest, hold.. then go up and your elbows must lock .. if the weight drops even a MM you are scratched. you can keep it level but no going back down. also butt, feet, head must stay planted and cannot come off.. you can use weights below your feet, totally legal as long as they stay planted the whole time.. you can even turn them as long as a portion is still touching. many guys arch their backs to create leverage, when i competed I didn't really do that.. seemed to be the taller dudes who did that, not sure why but i'm guessing because of leverage