Gertrude Short's 3 syllables (2 + 1) hit the Hollywood sweet spot.
Gertrude's 2 beats vs. Short's 1 create a natural cinematic snap.
Gertrude Short's softer consonants cost it screen presence.
Gertrude Short misses the alliteration hook that makes names stick.
Gertrude (8 letters) and Short (5) have a slight length mismatch, but it reads fine on screen.
Gertrude Short has mostly familiar phonemes with a few tricky patterns.
Gertrude Short has decent vowel richness, but stronger A and O sounds would lift it.