I use a non stick wok to cook with,I used to use a cast iron korai which i liked a lot but found it difficult to regulate the heat,even after I'd seasoned it and gave it a kind of non stick coating, I found ginger would cling to the base, so i switched back to the wok. Matt you say a wok is "not really BIR", what do you use?/reccomend?.
Next time I cook I think I'll pre heat the base in a small pan next to the wok,should make it easier to ladle in too,I can see now the whole pouring chilled base into hot oil is clearly adding to the carnage!