I've been using Micro Set and Micro Sol to apply decals to my Tamiya FW-180 A8 and this stuff is awesome! It's amazing how they help the decals look painted on. However, the Micro Set or Micro Sol sometimes leaves a faint residue once dried. It's my understanding that when the decal is fully dried, I can use water and a towel or cotton swab to clean up the residue. Is that correct? Also, if there's no residue, is any clean up necessary? Can I just seal in the decal with Future? Basically, is clean up mandatory even if there is no residue? I'm afraid that even if I don't see anything, the residue might still show up after I've sealed in the decals with Future.