I just experimented by trying to play a $25 MTT on Stars "in the style of Gus
Hansen" (shockingly presumptuous, I know, especially since I've only read
about 50 pages of the book

).
It was a bit of a roller-coaster ride, and I eventually finished 354th/1381.
Not too disappointed with that, especially since if I'd won a key hand just
before the second break where I was 60/40 favourite when the chips went
in, then I could have pretty much guaranteed to cash if I'd switched back
to tightwad mode (not that I was intending to do that).
It's certainly more exciting than the way I normally play ... not sure yet
whether it's more fun, but it has its moments!
One advantage of this style that had never occurred to me, although I guess
it's pretty obvious really, is that since you're playing a lot more hands, you
get to learn about your opponents much more easily, without having to
force yourself to concentrate, which is something I'm usually very bad at.