ironship
First, when 5-S was introduced, under SHIPS-2, Sept. 1941, it discontinued the use of 5-D, but also discontinued the use of Measure 1. So, to use 5-S in Measure 1 would be considered against orders. Second, whenever the use of 5-S is authorized, that authorization also specifically instructs on how it's to be applied, and that is usually using one of the new measures (Ms. 11 or 12), not Measure 1.
Jon makes some good points, but he also missed a few as well.
5-S was not introduced in SHIPS-2, and the version of SHIPS-2 he's referring to (revision 1) was not sent out to the fleet until the middle of October (I have the cover letter posted here). 5-S was introduced to the paint manufacturing yards in the middle of July and units of the Navy starting in August (note the recipient of that letter). However, in the case of the later, they didn't say what to actually do with it (It's not strictly listed as a replacement for 5-D). The Cruiser Helena was ordered to paint in Sea Blue at the end of August, far before SHIPS-2 Revision 1 was finalized.
There is precedent, of a sorts, for using a different paint as a replacement while yet datedposted keeping the same Measure. Sea Blue 5-S did not actually last that long; it wasn't dark enough for Pacific Service and I have a document I haven't posted yet dated August 11th of 1941 (referencing an earlier document I don't have dated July 24) requesting authorization to test what later became 5-N Navy Blue. The Atlantic Fleet ordered Sea Blue's replacement by the beginning of November of 1941. But note that they still call what essentially was Measure 21 later Measure 12. They continued to refer to it as Measure 12 until June of 1942, when the next revision of SHIPS-2 was released; that means that there is a seven month period where "Measure 12" meant "measure 12, using Navy Blue, 5-N paint, in lieu of Sea Blue, 5-S paint."
We have the big documents like SHIPS-2 Rev 1, what has been missing is all the smaller ones, like I linked to here, that help fill in some of the cracks and can change assumptions. At this time, they're not really doing anything more than making things more confusing, but in time I'm confident we'll know better, even if it's to say "we know we'll never know for sure." But what if there's one missing document out there that says "Paint Arizona Measure 1, substituting 5-S for 5-D" All it takes is that one (theoretically) missing document and what we knew is changed forever.
As a final statement, I want to assure everyone that I am not tied to any one theory. I have a completely open mind and am just trying to get to the bottom of this. If I find something that proves Arizona was in straight-up Measure 1 you bet I'm going to post it just as quickly so that people know for sure and we can move on to other things.