Maximal-rank conjecture for focal maps of equiclassical plane curves

Let $W$ be an irreducible component of the real equiclassical family of curves in $(\mathbb{P}^2)^\vee$ of degree $c$, genus $g$, and class $d$, and let $G$ be a general smooth point of $W$. Assume that the usual equiclassical tangent-space description and adjoint sequences hold at $D=\{G=0\}$, and that the focal adjoint bundle $\mathcal{B}_D$ satisfies

$$\deg \mathcal{B}_D=d-c;$$

this holds, for instance, in the nodal-cuspidal case. Maximal-rank conjecture. Then

$$h^0(\widetilde D,\mathcal{B}_D)=\max(0,d-g-c+1).$$

Consequently, the focal map has maximal rank at $G$:

$$\operatorname{rank}(d\Phi_G)=\min(2c,c+d-g+1).$$

This predicts that the focal deformation space is governed by the focal adjoint bundle and that the focal map imposes the expected number of independent conditions. The supplied text does not state whether this claim has been proved or disproved.