Spirality contrast ﹩{\rm{\Delta }}{ \mathcal S }=(18{0}^{\circ }/\pi )[\arcsin {{ \mathcal S }}_{{\rm{proj}}}({z}_{4})-\arcsin {{ \mathcal S }}_{{\rm{proj}}}({z}_{1})]﹩ between the last and first redshift bins for the Carrón sample across the 27 constructions and three multiplicity selections. Cells give contrasts in degrees and paired-bootstrap standard errors; asterisks mark 95th percentile intervals excluding zero. Color intensity encodes the signed contrast on a common scale with Figure B3. Hatched cells have insufficient support or an undefined interval, with endpoint counts N₁, N₄ shown; dashes denote undefined contrasts. Black outlines mark the fiducial construction.