It's been nearly 30-years but my senior year of HS for the spring semester I dropped down from AP-English to regular because of a conflict with the AP teacher and I'd already been accepted to Rice and A&M (but hadn't signed my LOI to Rice yet) and the difference was astounding. The teacher was so amazed and impressed that I'd read a book she was teaching for the class already when I was 12 or 13. And, IIRC, it was a Louis L'Amour book called "The Walking Drum" and not exactly Dostoevsky or Joyce. The most difficult thing in that regular English class was having to memorize the prologue in Chaucer's "Canterbury Tales" in the original Middle English, dress up like a character from the book, and recite said prologue in front of the class- and she was very generous in her grading.
I've been open to private for our now 8th & 4th grade boys but early on the wife was opposed. Largely because of her experiences with kids she knew who went to private schools in Houston. And honestly, at least for HS I'd really only consider sending our boys to Strake.
But the older boy is in all pre-AP right now and will take AP through HS. I do worry that school comes too easy right now and he won't understand how to study in college and be successful but we know several people who have kids at A&M that went through the same public schools and the same HS track that our boy will and they say not to worry. Plus, he's a jock and even though I feel kind of weird saying it, if he wants to play either football or baseball in college he's at a point now where you can project that if he gets close to what the doctors say he will be in height he'll be able to play D1 in either sport. Maybe not at A&M but a mid-major for sure.
Our 4th grader does great in all his math, science, and history but needs to improve on his reading and writing. But, it's partially because they put such an emphasis on reading aloud and he gets self-conscious about and struggles. However, when I have him read stuff quietly and then explain what he read he's got it down cold.