Splitters should always look at LSN over LSP because it gives a better idea of GPA/LSAT cutoffs and where reverse and standard splitters have the best chances to get in vs. getting a WL/Reject. Despite the sampling and self-reporting, I think it overall paints a good pictures of how each school treats individual LSAT and GPA's (that said, I'm pretty sure LSP is very accurate for those that have more median GPA's and LSAT's).
OP's highest PT was 162, not the average (and who knows, it could have been on an early PT and not a later PT), so I don't know how much a re-take would help. OP, how hard did you work in the class? Did you ask questions? Did you go to the extra help sessions? Do you feel like you were "getting it" or not? If you didn't work as hard as you could have, then a re-take is TITCR; if you feel like you maxed out and your chances of increasing are bad, then it's pointless. If not, you're probably into T3/T4 territory which tends to mean a lot of debt for bad job prospects.
ETA: URM is a game changer, if Mexican or PR and would probably make a difference (if that's the case, OP should consult the URM forum and ask for advice there).