O8 shorthanded ?

[tdp]

I'm fairly new to O8 but I think I've got a decent handle on it.I've played four live tourneys for the experience and yesterday somehow I won against a field of 20,mostly old vets of the game.Once we got down to 5 people I found myself clueless as to what made a playable hand.The blinds were viscous at this point.1k/2k with bets of 2k/4k and only 30k total chips in play.I was aggresively playing any ace w/2 lows,any four high cards single or double siuted,high pairs.Basicly anything that could make a hand at this point.Bluffing was also quite effective.The old guys said I played a good game.I'd just like to really have the clue I was pretending to have.Is it more about muscle than cards at this point?