My son's testing "runs out" this school year, as a senior. We debated back and forth on what to disclose about him to schools where he's applied. It looks fairly obvious there is something going on with his high math scores, his ap's in math & science and his regular level english/history, minimal foreign language and "B" grades. What we chose to do was have his GC write his recommendation mentioned how well he's handled his learning differences and in some of ds's essays he mentions how he overcame dysgraphia. So it isn't all over the place, but it's in there if you look.
DS has always hated accomodations but he may need extra time in college. Once he can get in we're contemplating going back for testing to have it available if he finds he needs it next year.