Fig 1) The peaks generally classified as 'dihedron resonances'. The different colors refers to different values of finesse asymmetry. The lower the asymmetry, the lower the peaks. At the level of IMC signals, the peaks are quite stable (fig 2). The coupling of those peaks depends a lot on the tuning of modulation frequency, but I don't see any reason why this tuning should be worse now.
Fig 3) An increase of coherence between B1_ACp and B1_DC. I didn't make any systematic check about that; maybe it has nothing to do with finesse asymmetry.
