It depends on your practice. Practitioners running group sound baths tend to want a full seven-chakra set, since it covers the full range needed to guide a room through an entire session without swapping instruments. Someone building a personal meditation practice at home often does better starting smaller, with a set centered on the notes tied to what they’re actively working on. Therapists and bodyworkers incorporating sound into hands-on sessions often favor sets weighted toward the larger, lower bowls, since those deeper tones are felt most directly through touch.