adjusting to kill pots?

[Bicycles_Biatch]

I'm going to an Indian Casino this weekend where the 20-40 game is played with a full Kill (that acts last)... and voluntary "overs"... bringing the stakes to 40-80 and bigger if I volunteer to play overs with other players.

Suggestions? Strategies?

I've heard conflicting views that I should tighten up - loosen up in kill pots.

I've heard not to play overs... definitely play overs...

HELP.