I couldn't agree with someone more. The written exam is something that you don't often encounter in life, let alone the oral one. I took mine in Chinese many years ago, it wasn't so bad and I got through. But people said they are getting harder recently. In my day, the dis have some tolerance over wrong answer, but now there is very little room for mistake. Besides, someone is right, you really don't need a Grade I at all for boating, Grade II will be sufficed.