Originally Posted by
PWMTrav
What kind of mileage do you think you'll log in the next 90 days? US Trial Silver is $200, but you'll keep whatever tier you hit in 90 days (7500 silver, 15000 gold, 22500 plat, etc).
I recommend the challenge
In addition to miles, you can also qualify on segments flown on US (10, 20, 30, 40) - so locking in status is fairly easy. It has made a world of difference in my experience.