Help me with THIS rebuy tourney!!!

[JackOfSpeed]

NL Tourney. Blinds go up fairly fast, although at the beginning stack size is 60BB - and you can rebuy to 120 immediately.

But here's the biggest strategy question I have. The buyin is 20 bucks, but all the rebuys are only $10...wouldn't that mean that I should routinely be taking 40%vs.60% shots to double up? Moving in with flush draws (I know that isn't 40%, but you might have other outs, or the other guy might fold) seems obvious...what are other strategy adjustments? Play ultra loose to build my stack, or even maniacally?