I haven't tried the Back on Track LS running luon top on yet but from all the photos I've seen of it it looks like a winner. Flattering clean lines and a little more functional than the Turn Around LS since it has some circle mesh panels under the arms. If you missed the Turn Around, you might want to pick this one up. I am looking forward to giving this a try on. The Pig is tempting but I have a ton of rulu tops and don't really need another.