Separate granulation background model posteriors (left) and the combined Bayesian model averaged radius posterior (right) for the reference star Perky. The vertical dashed lines show the median values of the radius posteriors, with the colours corresponding to the legends. The vertical dashed red and purple lines in the right plot show the asteroseismic and interferometric radius of Perky, respectively, with the uncertainties indicated by the corresponding shaded bands. The 16 and 84 percentiles of the combined radius posterior in the right panel are indicated by the darker shaded region.