Hi, Cat,

From what I've read on the CTY site, the late testers are compared to late testers and early testers to early testers, so there shouldn't be a difference in how he does. I'd say test at the best time for you to advocate for your DS. The scores get turned around pretty quickly, so I'd suggest just working backwards from the date of your end of year meeting to talk about math for next year. I'd guess you'd want fairly current scores for your meeting.