My recentely accquired '93 warwick thumb NT is discoloured on the upper wing and around the pots. This is presumably from the many dirty hands that have stroked its beautiful bubinga curves over the years! Stompfrog Senior is into his cabinet making and furniture restoration and suggested using white spirit to remove the layers of wax (and hopefully the grime) from the bass and get back to the bare wood underneath... then build up new (clean layers) of wax. Does this sound like a sensible plan... he is great with tables and chairs but is far from being a bassist so thought I would double check with the TB crew! Merci, Danke, Graci, Asante Sana, Cheers, Thanks!