I am almost done levelling my 4th SSR (I started a couple months late), but have already have 14 (9 drop, 2 from AQ4, and bought 3). I use Mordred w/ Snatch 3 in AQ3 (everywhere but Thunder where I use Sleipnir w/o Snatch).
There doesn't seem to be a shortage, but I'm a beggar, not a chooser.