According to investigator the operator had 1 bloody mary at 10am that morning of the incident.  He did not feel she was under the influence at the time of the accident.  Operator was preparing to bring the vessel up to plane in order to tow  a water skier but was having problems due to what appears to be fuel issues.  She attempted several times and each time brought her further and further away from the skier.  When she eventually got the engine started the tow line which had allowed for some slack was now extremely tight.  The tow line wrapped around the victim causing injury.  Both investigators felt this was a fuel issue and that the operator and skier were 
Very experienced boaters and skiers (over 40 years), they had a proper lookout as required and that this was just an unfortunate accident.
Webster