I recently read (I forgot which group) that there is a difference between LOS and NOR trunk paint hues and texture. I haven't compared my two cars yet to see if that was the case but I figured I would let you know there is supposedly a difference. Mike
It was either here http://www.camaros.org/forum/index.php?topic=1960.0
or TC http://www.camaros.net/forums/showthread.php?t=205287&highlight=correct+trunk+paint
or maybe first gens but to answer your question: Yes the LOS/VN looks more like silly string. NOR looks like standard paint splatter.
Norwood are more defined blobs of color (white or aqua and green based on year) while LOS trunks are base with "stringy" strands of color.
There is a great photo comparison on page 47 of Tony Hunter & Brian Henderson's "How to Restore your Camaro 1967-1969" of the 1966-67 color mix.