My son was in a great books program as a 1st grader with kids that were reading at least 1 year beyond grade level. They used the program a year or 2 ahead of their own grade level. I was really impressed and that program was the bright spot in his first grade experience. One of the parents of a GT child went through training to lead a group.
We're homeschooling now, but I've considered using great books at home as well. It depends on the reading level of the group, but I'd definitely looking at bumping up the grade level.
