i would just go with the t halls because the flex points on the ski are closer toward the binding than the ar6 for better presses and butters. but, im not really sure how much that affects it really... i got ar6s, and i thought about returning them for thalls because i wanted a softer ski, but after i hand flexed both, i was happy that i didnt return my ar6s. they are softer in the nose which will be better for butters, and stiffer in the tail which will be better for all mountain riding. but just for urban and rails, go thall.