Well, step one of diagnosing any problem is to rule out nutrient deficiency, which is unlikely in a legume, however a nice shot of fertilizer would be a good way to rule out color problems. Second, we don't know any of the specifics around how your plants are doing, other than that you sprayed them. How long have they been out in the sun, did you start them there, or are they trans plants? What is your soil like? is it rich or depleted clay? or something else? Why did you spray them? Leaf weavers? did you apply it at the proper rate? (I FREQUENTLY have a problem of overapplying... not trying to judge others by myself, just sayin)

Two days later. Any more thoughts now? Watering system not a problem as far as emitters or pressure. Only difference in placement is that this one is on the point. No evidence of tunneling creatures. Good. 1 of the healthy plants in picture 3 above. Not so good. Same hurting plant as above in pictures 1 and 2. Needs more water????

The yellow spots look like cedar apple rust to me. Best controlled by preventatively spraying any fungicide product containing myclobutanil as the active ingredient around May 10th-June 1st for your area. The easiest fungicide to get having this ingredient is Spectracide Immunox available at some Ace hardware stores or online. Nothing you can do now for the leaves already infected.

“after 10 responses no one has given their opinion on what percentage of discount would be the norm for this kind of flaw.” That’s because there is no “norm“ for this. Perhaps you think this sort of thing happens commonly so there’d be some relatable experience and consensus about what percentage discount you should get. But your situation does not happen commonly; actually it’s rare. Typically when people have problems with their fabricator, it’s about seam placement, vein direction, the overhang, the joints. And on the rare occasions I’ve seen people report flaws in their stone, I’ve never seen one that is a mesh imprint—and I’ve been a regular on this forum for years. The more common response I‘ve seen here would be “I’ve spent thousands on this counter, this is my dream kitchen, and I am not marring my kitchen with this. It needs to be replaced”. You have made it clear you want the discount instead. You will have to figure out your own discount percentage then, as there is no “industry norm” as you put it, and no one has “comps” for you.