Similar to Figure 3 but for the hypothetical scenario where the observing time of PSR J0030+0451 is increased. We crudely simulate the evolution in the nuisance-marginalized likelihood function by contracting the ﹩p(M,R| {\boldsymbol{d}})﹩ credible regions by a factor of two, while retaining the coordinates of the point which reports the highest nuisance-marginalized likelihood value.