free-streaming-length. This indicates that combining cosmic shear measurements at sub- and super-free-streaming-scales, might break the ${\Omega_\mathrm{cdm}}-{\Omega_\nu}$ degeneracy. Shown explicitly in Fig. \[fig:wlcont\] (middle panel), this degeneracy, as well as the similarly-oriented $\sigma_8-{\Omega_\nu}$ correlation (not shown), confirm that an increasing neutrino density decreases the cosmic shear signal. However, the tilting effect of the neutrino density on the matter power spectrum around the free-streaming scale may mimic the dependence on ${n_\mathrm{s}}$, especially if the pivot scale $k$ used is similar to the free-streaming scale $k^*_\mathrm{fs} \sim 0.01
h$ Mpc$^{-1}$. Therefore, the combination of sub- and super-free-streaming data may not have enough information to additionally break the ${n_\mathrm{s}}-{\Omega_\nu}$ degeneracy. This degeneracy is shown in the right panel of Fig. \[fig:wlcont\].

To explore the benefit of a broader range of scales, we construct a fiducial model consisting of an extension of our best-fit massless neutrino model to $\theta=20\degr$ (also shown in Fig. \[fig:wlcont\], left panel), where the flat-sky approximation remains valid. We computed a new covariance matrix using the Schneider [et al. ]{} (2002) approximation with the Semboloni [et al. ]{}(2007) non-Gaussian correction and WMAP-5yr mean parameter values [@wmap5dunkley]. We assumed the same sky coverage and galaxy density as in CFHTLS-T0003. In this way 