But beyond that, I think it actually made for a pretty effective camo. As you mentioned, it is quite disruptive, visually. Also the silver would reflect every shade of blue sky - here a little darker than the green, and there a little lighter. If the sky was dark and overcast, then the reflections would be darker as well. So it probably blended well against the landscape below, regardless of the weather. I read somewhere that the USN experimented with a mottled green/aluminum finish on (at least one) TBD Devastator(s), just before the war.
The only drawback I can see is that the paint splotches would roughen the surfaces ever so slightly - but again the resulting drag might have been more than compensated-for by weight savings from the reduced paint load, overall.
Anyway, I picked that camo precisely because it was strikingly different: in person, the model looks something like a Christmas ornament! Thanks for the kudos, Donny!