Guys/Gals, look at your JPPT (
http://www.cnatra.navy.mil/pubs/folder2/1542.166A.pdf) and see the formula used for calculating your PAS (Phase Aggregate Score).
The key factors here are (A) your overall ratio (B) squadron average overall ratio. Math says that if your score is higher than the squadron average, you are above a 50 NSS (assuming you have no unsat or marginal flights, as this plays a very small role - see formula). If you argue with math, you will lose. If you have unsat and marginals, you lose.
To determine your overall ratio, go into TIMS or your ATJ and look at the gradesheets for the the end of block flights (or most recent, up to date flights) and divide the total score (yours) by the total MIF you've carried. You will get a number that matches your stage score if you've done it correctly - 1.1x. This has to be done for each stage (Contact, BI, Form, RI, Nav), and you should have a numerator and denominator for total score and MIF you've carried throughout all blocks. There you have a number representing your "overall ratio". This is, of course, pointless unless you are within 10 flights or so and are wanting to see where you stand based on recent completers telling you what their overall ratios were and what kind of NSS they ended up with.
Did you get the Academic Achievement Award? Doesn't mean shit. Academics are not factored into your NSS. (
http://www.cnatra.navy.mil/pubs/folder2/1500.4g_ch3.pdf) <--- see pg VII-14 & 15
NFOs have academics factored in, pilots do not.
Currently a 1.18 overall ratio in VT-2 gets a 46 NSS...this week...this varies by squadron. Hard to say where the cutoff for 50 is, but fuck that's high.