Kit Woolsey even advocated redoubling with a normal overcall in the Same situation (playing I think the blue ribbon Pairs) on the Basis that the (even top notch) opponents might not know there agreements in one of his articles, so having a misunderstanding here certainly isn't uncommon.
Thank you for writing this series! It really gives new and fascinating insights on the way to think at the table with every article.
One question to the content though: What would South do with a huge hand and no clear direction over 4♣? After all East might just ...
I guess I'm definitely not spoiling the hand for anyone still thinking about the problem now, so here are the results from the table:
The West Hand was:
I followed the endplay-line Marc suggested above by cashing the hearts ...
With this Line you have the extra Chance that someone may discard his "idle fifth" in Diamonds. It seems almost impossible that an opponent will pitch two spades from say
after seeing his Partners second card in Diamonds and thus probably knowing that you have only ...