If you're somewhat good in party, or you know, people just likes you and they notice you're not member of linkshell, it's very likely that you won't have to be looking too long. Especially after level 25 you barely see LS-less people. Of course, odds that you'll actually get into good and active linkshell aren't maybe that good. I guess I was just lucky enough that my first LS has been good since the beginning. The other pearls I've had has pretty muchy sucked.