Advanced open water?

[BobK]

When I was working full-time at a shop I noticed something I disagreed with. There were fifty questions on the open water test, and you had to make an 80 to pass, so you could miss ten questions. But there were only eight questions where you had to do the tables to arrive at the answer. So you could miss EVERY question on the tables and still pass.

I think I've dove with some of those people.....