What better way to sharpen your game than to see how the pros handle the same hands you play. Here's an example from the 2002 Cap Gemini tournament.
You can see the detailed results at each table. Here's what happened at one table.
From the 2002 Cap Gemini tournament, here's a hand where an aggressive action by West led to a winning sacrifice.
World Grand Master Krzysztof Jassem from Poland aggressively bid 4S, pushing Gittelman and Stansby to a losing 5H contract.