I did evaluate both and visit both. Da Vinci's tour was provided by an admissions coordinator and the one in Avery Coonley was done by a parent. Sincerely, it was such a great way to tour as we got insights, real feedback, discussions on both pros and cons. I believe the one in Da Vinci was more of a sales talk.
AC also gave us opportunity to observe classes in session, talk to a few teachers (those who were in classes). Though AC also is curriculum based, I believe they do cater to individualized needs.Based on what I have seen till now, I will go for AC if I get invited to both places.
The work and projects of students that saw in various grades were pretty impressive in AC.
I still don't feel that any school is geared to handle a profoundly gifted kid (of the ones I have seen and talked to). Its the teacher and I am just hoping for the best..