Where is the training for Shanghai customs declarers?
Give you a good online school! That's where I go to school! I took the exam last year and got 126! Ha ha! Although not much! But it's over! They had a blue book last year and bet 59 points! If you are interested, go to the website of "Kyoto Customs Declarer" and have a look! Their detection rate is 79%. You can also listen to their teacher's class!