Our whole school is being required to adopt this spelling program. I see some holes in it like no sight words, no spelling sentence dictation, no prefixes, suffixes, etc. Has anyone had experience with this program and what do you think of it? Did you add to it or tweak it at all? What if your kids were super high. I had 2nd grader who has read all 7 Harry Potter books with an incredible vocabulary/spelling ability. I'm wondering if it will be challenging enough for some kids. Anybody have experience with it?