The pullets you have with the DC cockeral look to me to have single lacing from what I can see. Their mothers were hatchery birds, some with a muddled pattern verging on jubilee, but very poor Cornish type; my guess is that hatchery sourced "Cornish", both darks and white laced reds, originated from an outcross to increase egg production. Of course the outcross would have a negative impact on both color and type.The WLR color, is, from the way I understand it, some of the harder to breed colors of Cornish- due to a lack of quality birds- and a tough time with the lacing; several strains of them have double lacing, or jubillee as it is called-- mine do- so do Steve's-- although like I already said, they are not pure WLR Cornish, but half DC.
The two WLRs I kept are single laced, but one has has smudged or faint lacing. They're better than their mothers in type, but still far from a good, show quality Cornish IMO.