In my opinion the Fulltilt SnG structures are much worse than those of other sites...
The turbos have around 3 minute blinds, and last time I checked the $1.00 + .25 was a turbo, in which case just doubling up in the beginning wont be good enough most times, the blinds just increase to much to make that size stack healthy enough to survive.
The skill level is usually horrendous, but I would try to play somewhere else such as
pokerstars where the blinds are around 10 minutes long in non-turbo formats and have a better rake structure.