Came across a D3 today in a local thrift. Missing the head shell but I have a spare. Cover looked like hell and knew it would be a project. Reading the DYI sticky here I saw someone mentioned toothpaste as cheap method for cleaning covers so I thought I would try it . Dang if it did not work on cleaning it up significantly! I will still need to use another polish but I have hope I can get back into pretty good shape. I swapped out the Pickering XV-15 I was running on the SL-1700 and I really like how this turntable sounds.