284 KPT seems to be the supper hub of Bishan, with 284 Kway Chap in the same Kopitiam. Ding Ji is the dark horse, famous for its fish maw noodles ($8.80). I tried the step-down signature BCM as I wanted to save the $$$ (cheapo that I am). The soup is rich. You can taste the umami from the sole fish (ti Poh) powder. Best thing is that they are open 24/7. Get this and a serving of kway chap. K-O.