I probably had it as a kid and didn’t know it.
My Mom loves knife cut noodles. I do remember eating it in SGV as well as take out. It might have been the OG JYTH.
I definitely had knife cut noodles at China Islamic because my Mom would get this sour lamb soup in a big pot. I thought it was absolutely gross but I loved the knife cut noodles and sesame bread. We called this style of food, “Ma Family Restaurant”.
How is JYTH now? I think you said the main chef is no longer with them?