Interesting review and thanks for the tip on the protectant. Both my main level M60 are situated in front of the small walled areas between garden doors and windows. This wall faces the north so it is not direct sunlight. It's been 5 or six years and I haven't noticed any dulling on the finish yet but it might be interesting to compare them with the basement set. At least it would be were it not for the fact that they are so damn heavy.
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With great power comes Awesome irresponsibility.