MashAllah good purchase but scratch X, swirl Remover, Ultimate compound are all abrasive. In-fact swirl X and Scratch X are more or less the same with lesser degrees of abrasiveness. Generally using Ultimate compound will normally eliminate up to 80% of all scratches leaving behind only minute scratches to be removed by Ultimate Polish.
Ultimate polish can also be used on 4 or 6 monthly basis for good results.
Now that you have bought scratch X, Swirl Remover, you can use it on isolated scratches.
Happy detailing. Do post pictures when done.