सप्तारत्निना तुल्यभोजनोऽष्टारत्निरत्यरालः ॥ कZ_०२.३१.१४ ॥
saptāratninā tulyabhojano'ṣṭāratniratyarālaḥ
An elephant of eight ratni (measure) consumes the same ration as one of seven ratni, but it is excessively curved/awkward (and thus undesirable).
Bigger size alone is not a procurement advantage if it brings structural defects; the state should avoid paying maintenance for low utility.