Hiya, back cueing is how it should be done, slip mats, wait for the beat and let it go, nothing worse than that horrible wwwwrrrrwurp by miscued tunes, if you ain't happy with that, don't dj . Or alternative play cds and bring along a ring girl as per boxing etc, you play track on cd as scantily clad woman walks round with your original on dance foor held aloft for all to see. Female dj's can use their own preferances for similar effect, although in my case why would my wife want to see a fat, short arsed bauldie walking round half naked with a copy of the ' snake' and as she says ' it serpently ain't in his pants !!!! Cheers