I was able to get the following update on how Rob's swim went from a mutual friend and thought I'd pass it along:
"The swim ended up being kind of brutal - somewhere there the current changed and big swells picked up. Their guide boat could not stay close due to the waves. Rob said the captain was amazing at steering though and knew just what to do for support. It took 7+ hours. Rob said they had to come in at a different beach. He said he threw up once he put his feet down. After the mandatory time on the beach, his friend said time to swim 200 yds back to the boat and Rob refused several times. he said it was the hardest/longest 200 yds - haha! He said he's bit the bug now and wants to do more of the inter-island swims. "