It is a crap shoot.....and it has a hell of alot more to do with timing than anything else. Your NSS only means what it means the week you select......so like someone else said, quit *****ing about people selecting other weeks then your own. So many factors, people in your squadron you select with, total people you select with, the multiplier for your squadron that month (adjusts your NSS up or down from your raw NSS )...and last but not least the number of slots for what is avialble.
As far as quotas.....I have no Idea, but it would not suprise me at all.
Prior flight time helped me early, but that was about it (maybe a little in RI's too). Once the "system" is figured out, everyone is on a level playing field........Prior flight time bubbas have to rid themselves of bad habits that dont go over in the Navy.