So far I've removed the original rosette in the Martin soundboard to upgrade it to something rather more special. It was a fiddly process but I have managed to remove the old rings without damaging the surrounding wood... Sigh of relief!!
I've also starting building a jig to support the curved sides of the instrument while I work on them. Unfortunately my toy town bandsaw wasn't really up to the job and, despite my engineer husband, Matt's, best efforts, it has gone to that big workshop in the sky. I now have a shiny new one! :)