We stayed at a different resort and went on the cruise. If you can go, definately go! It is the most fun we have ever had! Next year we will be at Temptation though!
No the boat leaves at 10:30, but we meet at 10.00 to take balance payments and give out bracelets. An hour to get there should be sufficient. Make sure you go to the front entrance of the hotel (not direct to the marina) and say you are with Steve's cruise and they'll let you in. The bellboys are often more familiar with our cruise than the security staff as the security has high turnover rate.
We are staying at Temptations on part of our trip (8 of us) but then moving over to Hard Rock for the rest of our stay, where we will have another 4 people joining us. I am hoping that we can do a Boobs Cruise once everyone is together (sometime between Sept 9th and Sept 14th.