Percussion needs in most trance genres are pretty simple, and because my DAW (FL) is a decent drum machine in itself, I never used loops just as a matter of philosophy / practice (I try to miminize my use of samples for anything other than basic sounds).
FL came out with a nifty plugin called
Drumaxx that is all-synthetic drum sounds (easily tweaked in real time) that can often supplant the accessibility loops would give me, and is sometimes a good go-to tool when I want to get some ideas outside of my normal genre. Great for things like industrial.