Is FL3 more representative of how the exam currently is than FL1/2? I noticed a very obvious difference after taking FL3; there was significantly more balance in the C/P section (i.e. a more even mix of gen chem, orgo, biochem, and physics - FL1/2 are more unbalanced). B/B and CARS were reasonably similar to FL1/2 but P/S was WAY different (much less straightforward memorization and more analysis). The curves on almost every section also became far more lenient.

What I'd like to know is, have current administrations of the exam evolved to be more like this (not exactly like it but more generally speaking)? 

FL1: 517 (129, 131,130,127) -- taken last December
FL2: 517 (129,130,129,129) -- taken 3 days back
FL3: 525 (131, 132, 131, 131) -- taken yesterday

Is that score jump merely a fluke?