Set is one cycle of pin, resist, and 📝Release, usually repeated two or three times.
In 📝Resisted Soft-Tissue Release more sets are not automatically better. Two or three at a comfortable percentage beats one at full strength. It is a dose unit, not a gym pyramid. 📝Guarding on the next cycle is a reason to stop, not to add another.
Clients can feel the cycle. Knowing how many are planned helps them stay.