Kevin,
Everything i've seen you do is top notch. I'm sure they are paying a good price for quality work and most people would look at this and not have a problem, some people just want to nit-pick.
If they don't pay then threaten them with a mechanics lein. Take a bunch of pictures and do most of your communication in writing and establish a paper trail. Sometimes you just have to go thru the motions to get paid.
I think to an average judge he would look at that and say..."So what the problem? It looks good to me..."
I tell people..."You can have it done fast, or you can have it done right, but you can't have both."
I see no reason for you to even consider compromising on your price or your principles.
Words of Wisdom:
“Words that sink into your ears are whispered…… not yelled”
“The biggest trouble maker you’ll probably ever have to deal with, watches you from the mirror every morn’n”
“The only difference between a rut and a grave is the depth”
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Just remember...when it's time for the hearse to pull up..there's no luggage rack on top!
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The beauty of the Second Amendment is that it will not be needed until they try to take it...Thomas Jefferson