still in sng id say its a mistake to fold this, since you get so nice odds to call this. you need to win one of four times to make this call EV+ and im sure you will.
Not at all. While you would need to win 1 out of 4 in a cash game in order to make this call +EV, the same does not hold true for tournaments and sit-n-gos. This is because each chip does not hold cash value. If you double up on the very first hand of a SnG, did you just guarantee yourself a double-up of your buy-in? While it helps (and your EV for the sit-in-go has gone up), you are by no means guaranteed even a cash in the game.
A tool located on
this page will show that if you double your chip stack, you do not actually double your EV - in a standard 9-man sit-n-go, you raise by 82.5%.