<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by Carfield:
Mileage -- NWA is better with 100% mileage accural on all Y fares, but TG is more limited even with the Star Alliance connection. Some discounted Y fares can only qualify for 50% accural or no mileage at all.
Carfield </font>
TG dropped the 50% discount of econ miles back in Nov 2000. As far as I have observed of the program in action, 100% of econ miles that would qualify as status on TG, also gets credited as status on other carriers. Often, class-of-service bonuses on TG gets credited as additional status miles on other *A partners (e.g. 150% of actual TG P-class miles showing up as status on UA).
Conversely, miles on TG's *A partners also show up at 100% on TG, with the few exceptions being AC (50% on some deep discounted econ fares when flown within Canada - 250 mile minimum credit) and ANA (50% miles for discounted econ fares). Other than that, the only time TG might balk is on heavily discounted *A fares, although I have yet to see that happen in practice.