So I went to Taste of China, Tong Soon, and Cafe Lucy for their chao ma mien aka jjampong aka spicy seafood noodle soup. The photos are below.
Taste of China: The soup was excellent, spicy, garlicy, full of fried red peppers. The shrimp and squid were bountiful...BUT the noodles were soft. Definitely not handpulled. They were your run of the mill flat noodles. If only they cooked them less, this place would be ideal.
Tong Soon Garden: The noodles were thick and chewy...BUT the soup was not ideal. It was spicy and full of seafood, but there were no fried red chilies so the broth as a whole was not what I was looking for. I'm not sure if this is the difference between korean jjampong vs chinese chao ma mien.
Cafe Lucy: I like the owner. She's nice. But the advertised "handpulled" noodles were not chewy at all. The soup was also a little sour and not very murky. She comped me some very good scallion pancakes but alas, I'm afraid her rendition of chao ma mien is not very good.
If anyone has any more recs in the south bay, let me know.