We did, for essentially the same reasons you've listed. And I believe the default now is for scores obtained prior to high school to be deleted unless you explicitly request that they be retained.

FWIW, the "practice" reason turned out to be particularly useful, as one of our children learned you should not assume that you are done with a section early, and should instead keep working until you actually see the little "stop" symbol on the page...


...pronounced like the long vowel and first letter of the alphabet...