Guys, Can anyone share their advice on cleaning, polishing and SHINING the fine knurling on 1947-1954 Super Speeds? Have recently obtained several models to feed my addiction and just can't brighten a few even though the rest of the razor cleans up nicely. My '55 SS, with the beefier knurling, shined up really well but along with the texture, its plating seems different than the older models. My cleaning method so far will be familiar to most: 1. Boil in water 20 minutes 2. Warm soapy scrub with toothbrush 3. Toothbrush scrub with MAAS 4. Repeat 2 & 3 until arms tired. Apologies if subject has been discussed somewhere else. Many happy thanks in advance.