Here's the finished back. I'm very pleased with it - a really beautiful deep shine, but it has taken a long time as I decided to grain-fill using just the French Polish. Previously I've used pumice/polish to abrade and fill the rosewood pores but this is a tricky and not very reliable method. For the current instrument I'll be using a new, clear, water-based filler which comes well-recommended. I'll be reporting on how well it works !