Yeah I used to try the 3$ 9 man ones, and did ok at first, that sucked me in, and then i started losing.
More recently i tried the 3$ 45 man sng's, and cashed for 2nd in on one of them, ntb. Seemed you had to just get lucky early, and then try to hold on to your chips. Since that one i have played a few more and lost every singe one lol... I always get alot of chips then get a good hand and lose to some suckout crap hand, maybe you just gotta fold until the final table, from what i remeber it ended up being just like a 9 man sng at the end, almost stack wise and everything.