Good question,and I come in peace..I don't know Des,but I do know he is extremely knowledgeable regarding option "math".. I have gained valuable insight from his posts,and FWIW I was the head trader of equity derivatives at a major I B..
With the increasing interest in options nowadays, I heard equity derivatives traders are highly sought after nowadays. Are you thinking of going back to the field working for those institutions or those "houses"?

