Jon, I have no idea what the standards are. I just know that what you showed in those photos would have "caused bad words" if I paid good money for custom panels...unless there was full disclosure in advance. I may have even uttered one or more of those words when first saw your pictures. Some places might say that the buyer "should know" but if the buyer isn't a regular, it sure would be courteous to mention the "Ground Rules" before the game commences.
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The most expensive tool is the one you buy "cheaply" and often...