Suited Aces in limit holdem

[binions]

Many poker books treat anything below ATs as Axs, implying that A9s is interchangeable with A2s.

Looking at the Pokerroom stats, it appears that A9s is: stronger than the suited aces below it, profitable UTG, and about the same EV as 77.

A8-A7s and A5-A4s are similar in EV to each other (and 66), and all apear to be profitable in early position.

A6s and A3-A2s appear to be the runts of the litter, marginally profitable and only in middle to late position.

http://www.pokerroom.com/games/evstats/pairStats.php