Hi, I recently got an used fretless Warwick (rockbass, sadly) streamer. I'm happy with the playability, not so much with the sound (pickups are to blame) and i've noticed string marks are starting to appear on the fingerboard. I know I should use flats but the store where i bought them was out of stock for the rest of the month, and i definitely didn't want to wait a month to play my new bass. I've read than linseed oil is good for "sealing" the wood. Do you think that is going to work on this bass? I'm no wood expert, but the wood is dark enough to be ebony. Or maybe dyed rosewood... I've considered epoxy but that would be problematic seeing as i live in a small apartment with not much space for this stuff... Linseed/tung oil on the other hand would be easier to do and easier on the landlord's furniture if ever spilled. Has anyone ever tried this?