The same lobe, twice — an exactness study

Nothing here is drawn. Each version takes one of the mark’s own lobes and makes the other by rotating it 180° about the disc, so the two halves are identical by construction. The red underlay is today’s trace: wherever red shows, that is how far the exact version moves.

as traced todaythe two lobes are ~1% different — nearly congruent, never exactly
upper lobe, twicelower lobe replaced by the upper one, rotated 180°
lower lobe, twiceupper lobe replaced by the lower one, rotated 180°

At the sizes it has to work

as traced today
upper lobe, twice
lower lobe, twice

On dark