George, I think in the real world no one is going to pay for 200% price in order to get a good seat for economy class. People will book your ticket if you charge low with great service, but not pay too much for better service. If they really want to get better service, they will consider paying for a standard priced business/first class seat before paying their economy seat at 200% price. That's the reason even a lot of Japnese fly with Delta on pacific routes because Delta has a lower price. Of course, it won't be ANA or JAL service, but people in the real world think about the price a lot, especially when the price for a standard ANA/JAL economy seat is even higher than that for a Delta economy comfort seat.
The cap is still too high for economy class. I think 150% might be more reasonable. Maybe even less for short haul. AS is also missing economy comfort class at this point. That's when people want to get a better seat but unable to pay for the business class tickets.