One Extra Tip
Traktor can only have one BPM per song so that means that you can only automatically sync one of the 2 loops if they were set at different BPMS. For example in this video the outro loop was 94 bpm and the intro was 89. For this reason I recommend you set the BPM of the song to match your outro loop and manually beat match the intro loop. Why? Because you have a lot of time to adjust the timing of the intro loop before the audience ever hears the track but with the outro loop- it has to be right almost immediately. There is no time to beatmatch as the tempo will be changing right up until the moment you need to start mixing.