DISCLAIMER: I recently got kicked off Full Tilt and moved to Carbon Poker. Used to play 9 man reg SNGs. Carbon does not seem to offer these on a regular basis at stakes of $20 and up (takes 15-20 mins to fill a game). the $20 DONs seem to be filling up much faster so I have been playing them. So... I have zero experience playing these things but plenty of experience playing the normal flavor SNGs.
if this was 6 handed on the bubble I insta-muck. 7 handed I wasn't so sure. I did end up folding and making the money later. However, still not sure if I made the right play. Should I be calling with AK here? and what range should I be calling with?
Merge, $20 Buy-in (150/300 blinds, 15 ante) No Limit Hold'em Tournament, 7 Players
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#9135102
CO: 2,266 (7.6 bb)
BTN: 1,795 (6 bb)
Hero (SB): 2,020 (6.7 bb)
BB: 3,284 (10.9 bb)
MP1: 1,545 (5.2 bb)
MP2: 235 (0.8 bb)
MP3: 3,855 (12.9 bb)
Preflop: (105) Hero is SB with A

K

3 folds,
CO raises to 600,
3 folds