Addendum: the operative bit in my critique of Greedo is
if you think you'll get an AI call from a smaller pair

When opps pick up on the fact that you've got hot sh*** when you go AI preflop, the calls will be less likely and you'll have to change gears.

But the reason to change gears is NOT "I'm pusing my luck -- someone's due to crack my aces". This is false. Your aces' previous performance has no affect on their current chances.[/i]