Someone I know picked up a Knilling bass from the Now-Defunct Mars Music. He considers it to be too glossy and too orange. <duh!> Can he de-gloss it by applying another satin finish over the existing Knilling finish, maybe Waterlox or Minwax Wipe-on Poly? If he did that, could he also add some kind of aniline dye to de-orange it at the same time? Would he need to prepare it with steel wool or something before applying the satin finish, or would it adhere okay just to make sure the bass is clean & dust-free before starting?