You're welcome! One of the things I like KUMON is set for individual pace. If your son is advance in the class, he can advance as fast as he can in KUMON. I think kids feel more confident when they find school work is "easy". :) According to this book, you can really tell the big difference when kids go to high school. I think most Chinese kids are good in elementary/middle school anyway, KUMON or No KUMON because school work is easy for lower grades. But once they go to high school, it's different story. If they had KUMON training, they already have very sound foundation in math and reading, so high school work won't be that challenging, they can focus on other things like talent development, social work, leadership, etc.
Hope your son will like KUMON. :)
Hope your son will like KUMON. :)