You know, something just occurred to me - I wonder if this isn't an issue that this school has run into previously? I can think of at least three sets of parents here in our area who had the same issue when their twins were tested for GT program admission, and the twins who didn't qualify at first *did* get in. I *think* (but don't know for sure) that in each case the twins were offered alternative ability tests, and suspect that the GT program staff were sensitive to concerns from the parents that the children be placed together in the program. I'm just wondering if you've tried to appeal in person and were told an absolute "no way", or if you've asked about additional testing, or if you've asked if they'd consider a conditional placement, where twin #2 is admitted to the program and then allowed to stay as long as he shows he can keep up (which I'm guessing he'd have no problem with). The conditional placement is something that a ds of one of my friends in another state was offered when her ds' teacher thought her ds was a good fit for a GT magnet but his ability scores weren't quite high enough to qualify.
Just putting a few more ideas out there - I tend to always take the first "no" as *the* final answer, then realize later that many parents don't stop at the first "no" and are able to get services for their kids.
Best wishes,
polarbear