Dualization conjecture for the Raisonnier ideal and the null ideal

Let $d4a9$ be the Raisonnier ideal, let $d4a1$ be the null ideal, and write ${\rm cov}(d4a9)$ and ${\rm cof}(d4a1)$ for their covering and cofinality numbers. Let $d53d$ denote the dominating number.

Dualization conjecture.

$${\rm cov}(d4a9) \leq {\rm cof}(d4a1).$$

Consequently,

$${\rm cof}(d4a1)=\max\{{\rm cov}(d4a9),d53d\}.$$

This conjecture proposes a dual form of the paper's lemma asserting that the additivity of the null ideal is at most the uniformity of the Raisonnier ideal. Its resolution would clarify the relationship between cardinal characteristics associated with the Raisonnier ideal and Lebesgue null sets.