I'm a SL9 in APA 9-ball, and I manage to field a team and even play most weeks w/o resorting to recruiting the mentally impaired. Also, you dont have to come in as a SL4 - just have your LO put you in as an 8 or 9.
There is some talk about APA changing the SL cap system so that 7's 8's and 9's...