Originally Posted by symbian simian

Assuming you did the math right (too lazy to check, hence at NK):
1) Yes
2) Yes
3) Yes
4) Yes

As far as premium goes, if you have a weekday trip you have a better chance of dropping it, you will then be more available to be called the weekend prior for premium, if not, you might be in time to pick something up. Still only likely to work in the summer, xmas, 4th of July....