@ecko and others.
You can do the second Francesca Gino hit. She won't send you another GC though. I would say contact her first and say you would like to do this second one and already did the first one and own the book so she has your email address and knows not to send you the second GC. She had me fill out the first survey and said she would email me other directions after receiving the first survey.
(And I totally get why people are confused about the code this time around! I am almost sure there was no code on the first survey on the first round of hits like this. I just saved that info in a google docs file so I can copy/paste the code should I need it after the final survey.)