I came to the conclusion after pre-K that if the teacher didn't seem to get DS6 within a couple of weeks, she probably wasn't going to. At that point I was either going to have to put on my big-girl pants and advocate for change or I was going to have to homeschool. Those were really the only options available.
Long story short: K went well, 1st grade did *NOT*. I couldn't foresee a good end to advocacy in our case, and I could see how much work it would require to get even minor changes made. Ugh.
Homeschooling is a lot easier for Spock than dealing with all those <shudder> people... (LOL!)
But seriously, I really do think you have to pick one or the other when you have an HG+ kid: advocacy or homeschooling. Great situations like Bianca's are the exception...and an exceptional exception at that! Banking on finding one without advocacy is like planning for retirement by buying lottery tickets.