Been there, done that.

If you have current documentation of his disabilities, send it in to the testing companies ahead of time to get him approved for accommodations. Having the right accommodations in place made a huge difference in my son's ability to show what he knew on the math and writing sections of the SAT.

ETA: If you have supporting documentation, you can ask for small group/private testing, which should take care of the "all the other kids are doing..." stuff.

Last edited by aculady; 12/14/11 05:52 PM. Reason: added link, additional comment.