Deep water soloing

Here's possibly the world's biggest climber (perhaps in terms of reputation) doing a deep water solo (climbing without ropes and falling into the water if you get detached from the wall) in Spain, Mallorca, part of the footage from his new DVD 'King Lines'.



I think the videography is in many ways as amazing as the climb itself. Lots of questions -

• How did the videographer get up there for the above-head footage of him? The rock is a sea arch standing alone in the sea, if they didn't climb up there first, they were dropped in by helicopter?
• If they did us helicopters, would they need to rappel down to the underside of the cliff to film him in action?
  
• When he did his dyno, how did they get that action from several camera angles? Does the side view shows that someone was on the main land filming across the sea?
  
• If he's the first person to send it, how come there's chalk marks on all the holds?
• He'll need a new chalk bag after every attempt isn't it? Doesnb't that limit the number of attempts he can do each day? (And that's provided they can make it dry for the next day).