I'm in the process of re-doing a 65' Teisco and i wanted to keep the body the same color as it is (without the old paint and stuff, of course...)It's a light clolred wood, but I'm not sure what kind it is. However, when I try to put even the thinest coat of polyurethane on it it turns the wood a darker, more amber color which I don't want. A theory of my unluckiness with the color changing came from my uncle, a skilled wood worker(though not a luthier): The wood has "large pores" (i guess it's a technical term...lol) and upon sanding, many of the pores are opened up on the top and fill with the fine sawdust from sanding, making it feel smooth. However, when it's stained or lacquered, the sawdust quickly absorbs the stain/poly making the (many)pores look darker. He suggested putting a few coats of white picking stain mixed 50/50 with linseed oil to just to fill in the pores to givve it the illusion of being brighter, then stain it again 50/50 with the linseed oil, or leave it and just use linseed oil, or lacquer lightly over the pickling stain job. I'm not sure what to do, or if I even should use his ideas! I'm trying to get it done asap-but-throughly because Jazz band starts up at school soon.... Any help at all will be appreciated! If anyone knows a way to get an oil finish as clear as possible, or even how to do an alternate stain color (eg., blue as my second choice) oil finish, please reply!What kind of oils) do some of the pro luthiers use? How would I do an oil finish? Heck, if anyone has once cell in their brain devoted to finishing basses then please reply, I need all the help I can get! I'm willing to devote time and work (ok, fine, some money too...) to get this done nicely. Thanks fellow bassers!