Only the degree of precision is lighter in hasan li-dhatihi; the remaining principal conditions of sahih transmission do not disappear. Uprightness, connectedness, freedom from disqualifying anomaly, and freedom from a harmful hidden defect all remain relevant.
Case 1: An upright, reasonably precise transmitter belongs to a connected chain free from a proven defect or anomaly: an intrinsic hasan grade is possible.
Case 2: The same kind of transmitter has no established link to his supposed teacher: lighter precision does not repair a broken chain.
Case 3: The transmitters appear generally reliable but the specific version contradicts a demonstrably more accurately preserved account: one cannot ignore that anomaly merely because the narrators are ordinarily accepted.