Equivariant concordance invariance of the Maslov grading invariant

Let $(\widetilde{K},\tau)$ be a strongly invertible knot. Define $s_\tau$ to be the Maslov grading of the Alexander grading $0$ generator that generates the $\mathbb{F}_2$ of the $E_\infty$ page in the spectral sequence of Theorem 1.

Equivariant concordance conjecture. The number $s_\tau$ is an equivariant concordance invariant.

This conjecture would promote the spectral-sequence grading invariant to an invariant of equivariant concordance classes. The source says that computations for non-$\delta$-thin strongly invertible knots are intended for future work; no resolution is given here.