At this point in time I would tend to agree with you.
Still have documentation on the way to me. Will wait & see what is there. 
Some facts that have come to light about this skin.
1. The last two P40's were flown by pilots of two different squadrons from the same fighter group.
2. They both did see combat in this scheme although only for a very short period of time.
3. Yes I did say both? Because they painted the last two P40's with the same scheme to look like a sharks head.
This explains a lot of discrepancy's pointed out By Krusty about the uneven looking paint job from photo to photo.
Simply put we are looking at photos of two captured planes with almost the same paint job to look like a sharks head.
So where to go from here? Well the flame blazed P40 profile is out no question unless a flame coloured shark can be found.
The solid yellow profile is out because that uneven looking paint is done by design to look like a sharks skin?
The Japanese pilot Lt. Yasushi Ushijima of the 84Th dokoritsu chutai. Is referenced a few times about these plane's & I think he may have some written descriptions based off a few links that mention him? Exploring this option at present as well.
http://www.pacificwrecks.com/aircraft/p-40/capture.htmlhttp://www.j-aircraft.com/captured/capturedby/p40warhawk/captured_p40.htmIn other words all new ground here

If cactusKooler still wants to do this skin pick a shark that best looks like what you think the skin looks like & go at it.

Unless a Colour photo shows up I would say any thing you paint on will have to be right so long as you make it look like a shark.
Here is the info from the book.










