So for posterity, or in case someone cares, or there is someone out there who has luck like I do...   :D

I seem to have solved the dingy video problem that was caused by creating a SCART sync on green.  

Excepting ground, here is the final config:


Code (]ST                  SCART

HSYNC      ----[100[ch937):

]-----      20 RED      ----[150Ω-----      15 BLUE      ----[150Ω-----      7 GREEN----[150Ω-------- 11                     / VSYNC----[150Ω-----/ AUDIO                  2&6