I spoke to my DS's doctor about VT, he said he has seen it work a couple of times, but far more often it doesn't work. He wasn't sure why it did work in the situations that it did. When I read further it appears to be good for a couple of conditions, but often people think VT is a silver bullet and it will fix things that it won't fix.

I called one VT in my area, and I asked the person who answered how often they find problems when they do the initial evaluation, and she implied they always found problems….so that put me off. Statistically it doesn't make sense that they would always find problems...