Just my opinion"...it will be equal to the amount that the gold price exceeds $850 and up to a maximum gold price of $1,700."
A maximum price of $1,700 USD for gold?!!
With QE1, QE2, and many more QE's to come over the next 4 years, gold is very likely to reach $3,000. A maximum price of $1,700 for gold doesn't sound like a good deal.