Help or suggestions for this custom PBN

I have found a section in the PBN I'm doing that I'm not sure how to handle. This is my first (other than when I was a kid) so I don't have any experience with doing custom ones. As you can see, there are several 16s that all touch each other. (And yes, they're clearly 16s on the guide sheet too)

I've thought about changing some to 15, but there's a couple that also touch a 15 too. I've thought about mixing 15 & 16, to make a new shade, but they're already only a shade off of each other based on the ID number. So I dunno if that would make much difference. Or finally, I've thought about doing the inside 16s, making the edge of them somewhat thick. Let it dry. Then do the outside 16, and hope there's a bit of a visual separation between them even though they're the same shade.

But I'm totally open to any other suggestions too!

Thanks in advance! Happy Holidays, Merry Christmas!

I have found a section in the PBN I'm doing that I'm not sure how to handle. This is my first (other than when I was a kid) so I don't have any experience with doing custom ones. As you can see, there are several 16s that all touch each other. (And yes, they're clearly 16s on the guide sheet too)

I've thought about changing some to 15, but there's a couple that also touch a 15 too. I've thought about mixing 15 & 16, to make a new shade, but they're already only a shade off of each other based on the ID number. So I dunno if that would make much difference. Or finally, I've thought about doing the inside 16s, making the edge of them somewhat thick. Let it dry. Then do the outside 16, and hope there's a bit of a visual separation between them even though they're the same shade.

But I'm totally open to any other suggestions too!

Thanks in advance! Happy Holidays, Merry Christmas!