I am looking at a similar situation for DD, who has a Sept bday and is the smallest in her class already.
When I skipped, it was with a small group, so going through puberty, I wasn't the only one on the slower side of developing. That is my biggest concern about DD is being the only one going through the process. Going through puberty is one thing, but there is a core group of kids that will also start to experiment sexually, more than I did or want DD to in middle school. I think you will find this more with kids that are red shirted. They are older. You can have a kid 14 turning 15 in grade 8 that was red shirted.
I looked at options and decided to keep DD in public school for grade 4, then do a HS for 5-6 in one year and apply to a specialized gifted school that starts in 7th. It has a small student body and has younger kids that were accelerated. If there are buddies in the same mix, I think it helps a lot during those middle school years.
Ren
