<p>When I entered college, the honors advising department actually calculated a projected GPA! With a 3.98 in HS, they projected a 3.54 at the flagship state U. I recall being vaguely insulted at the time. 
Now, I wish I had actually made that GPA…</p>
<p>Check with the advisors in your S/D’s intended major to see if they have estimates of what an estimated average GPA might look like, given HS grades and test scores (or department-wide, or for kids getting merit $$). The general admissions office might not have that level of data, but departments might. You never know what data/resources they might have!</p>
<p>DS got recruitment mail from KState a few weeks ago. First time I have ever seen a college recruit specfically for math majors! :)</p>