[Andy B]

You need to get Sklansky on Poker which has a very good razz section. Sometimes a three-card Eight won't be worthwhile, and sometimes a three-card Nine (or worse) will be worth raising with. If you have a Seven up and everyone behind you is showing bananas, it's worth trying to steal.

On your sample hand, if the other guy has a wheel draw with his Jack, he's a solid favorite on fifth street. You're back in the lead on sixth and should put in as much money as possible.