i hate to say it, but this really depends on the school and thier strategies for staffing and kid placement. we have had good luck with sc classes and have been less impressed with the tt classes at our school. we fought for placement outside of our base MS to a school that grouped kids in sc according to similar temperment and need, so our aspie kid was placed with silmilar higher achieving kids with some attention issues. we had an amazing team of teachers that worked together and were committed to his success. had he stayed at his base school, we probably would have kept him in a mix of TT and GE classes because the sc classes were a crazy mix of every disabilty/behavior problem under the sun. Keep in mind though, that while there are 2 teachers in TT classes, they are really crowded and we didnt find the teachers particularly responsive...probably more of a lack of time issue, than lack of desire to help issue.... they had over a hundred kids/parents to deal with. hope this helps