Lately I've been doing a good job of playing tight and making good reads against opponents, until half the SnG table is gone. From there I find that my toughest opponent becomes the blinds, and if I don't make the $ then half the time it seems I'm on the bubble.

How much should you generally loosen up your play in the late stages? I tend to raise on more hands than normal in the interest of grabbing the blinds, and am more likely to raise from the SB with a Q or K in my hand rather than folding if the table folds around to the blinds. I might even raise from the button with something marginal (like suited connectors).

Beyond that, how tight is too tight, and how loose is suicidal?

Thanks.