Marginalised posterior for Ω_m when comparing their geometry (horizontal axis) and growth (vertical axis) counterparts. We show the evolution of the contours as more data sources are added into the analysis. Namely, we display weak lensing (green), weak lensing combined with clustering data (grey), weak lensing combined with clustering and Lyman-α forest data (red) and finally weak lensing combined with clustering, Lyman-α forest and Recomb data (blue).