First, Cara, I'd like to welcome you to TestMagic.
Second, I've split this thread off for you so that Knok can get the help she needs.
Second, doing well on a test doesn't necessarily make one a great teacher. And doing well on a test and being a great teacher don't necessarily make one a great teacher of that test. Even a bright, caring, insightful teacher may not be a great SAT coach until he or she gains the experience of a master teacher for that test.
Mind you, I'm speaking in generalities, and in no way am I trying to make any claims about you or your husband. I honestly hope that you two are those special people who can make a difference in a young person's life. It can be an enormously rewarding experience to know that you've helped somebody achieve a dream.