Has anybody used the wide whitewall tire inserts? I had to replace all my tires due to age ( cracking, splitting ) etc.. I was moving and needed new tires in a hurry so bought some cheaper tires ( needed all 5 ) with the thinner whitewalls and I just can't get them white as new. just clean but not white. Any experiences? It may also be a good time to clean & paint the wheels so they are all body color also as they should be. Oh they are radials if that makes any difference. A driver not a show car so authenticity is not an issue.