The only advice I gave to my kids was to enjoy, work hard, do your best. My kids have all really enjoyed their testing (one on one time with an adult...rather rare in our family).

I'm having my DS 13 IQ test next week! I know he's old, but I never applied for the first 2 sons and now their test data is ancient. I'm not doing the portfolio stuff. DS13 is nervous ("What if my IQ scores went down?"). I told him that first they're not supposed to change and second it doesn't matter. If you don't qualify for YS(which I'd find difficult to believe) it's no big deal. If you do, great!