cpdibari, I think we fall under the same district (Manhattan?), although my school is handled by the East side office. Best of luck to you.
As tpg said, PFT score is not the final determinant, but it is arguably the largest component for selection. To illustrate this, the minimum score to have your application shipped is a 225, which is the lowest possible score to be classified a 1st class PFT. Most OSO's won't ship an application unless the PFT is a 245+. A stable, competitive score in recent years was considered 275. Clearly, the closer to 300, the better. The board will simply throw out an application with a PFT lower than 225, and a 225 on the dot is not a likely candidate. To further emphasize the PFT score, they were accepting 2.0 GPA applicants a few years ago as long as their PFT scores were well above the average. In addition, all officer candidates have a different minimum to hit on each event as opposed to the normal PFT mins: 8 pull-ups, 80 crunches, and less than a 24:00 3-mile run, as opposed to 3, 50, and 28:00. Of course, that doesn't mean those three scores combined equal 225... An 8, 80, and 23:59 PFT equals 184, in fact. So don't shoot for those! It can be argued that extracurriculars, academics, ASVAB score, SAT, ACT, etc are secondary to PFT, although not that far off. I agree with the above advice; applying to PLC should be only after you've exhausted all other commissioning sources (other than OCC, of course), even though it is fact that PLC is the largest commissioning source for the Marine Corps. Depending on the officer accessions of the given year, selection can be very competitive or very lenient; it all depends on how commissioning turns out from the Naval Academy and NROTC-MO. Most offices will hold PT improvement sessions for those applicants who need to get up there. The OSO should be willing to work with you. Best of luck on the PFT and your eventual goal.