I generally buy a J class East-West connector pass (10 credits) - valid for 12 months - with select privileges I get 2500 AQMs bonus. I usually use 8 credits in 12 months (and then extend for another 3 months for a fee); sometimes I do use the 10 credits within 12 months. I usually fly between Ottawa and Vancouver.

Now the world pass is 9 months - can be extended (for a fee) for 2 consecutive periods of 3 months each. I am wondering about buying one (or even 2) North American World Passes.
Is the NA World Pass also book in D class, or in J class? What do the double asterisks mean, next to the NA World Pass?

What do you recommend - between these 2 options?