Need advice for picking Dr. for Scoliosis Surgery in Raleigh NC

My son Nick has scoliosis with a 67 degree curvature. He started out with a 30 degree curve in 5th grade. He quickly progressed to a 60 degree curve within a year while he went through a huge growth spurt. We decided to try alternative treatments..yoga, muscle therapy, acupuncture and corrective exercise. Unfortunately his curve progressed again to a 67 degree curve,
We are facing surgery and are trying to make a decision between 2 doctors . Dr Lloyd Hey at The Hey Clinic in Raleigh or Dr. Robert Fitch at Duke Lennox Baker Children's hospital.
We think both docs are great in their own way.
Dr. Hey is younger and worked with Dr. Fitch at Duke--he told us that surgery would be 3 -4 hrs and recovery would be 2 weeks and Nick could basically go right back into sports. He also said the incision would be about 6 inches and Nick would instantly grow 2 - 3 inches right after surgery.He said he could correct Nick to 3 -5 degrees. He gave us all the answers we wanted to hear.
Dr. Fitch is a 34 year veteran at Duke university and was highly recommended by our friends. He told us surgery would be about 6 hours with a 11 - 12 inch incision and told us Nick had to stay out of school for 4 weeks and NO SPORTS for 6 months. He said Nick would grow at least by 1 inch.
He would not commit to a number of correction but did say it would be better than 30 degrees.
We are very confused about who to pick and welcome any advice and/or opinions..