Alright...so painting white is easy. Painting a worn white not quite as easy.
Over the offwhite base, I switched to a mix of Middlestone and Olive Drab for panel lines and panel shading. Thinned Neutral Gray was also streaked in the direction of airflow.
Thinned the offwhite way down and went over it all, stopping just where I think the effect is still too noticeable. It's been my experience that once more pass would look great, but disappear under clear coats, washes, and weathering. So I'm trying leaving it a bit more blatant this time out.