Most experts would open with 12 high card points and a reasonably good five card suit. They would also open a hand like AQxxxx Kx xx Qxx with 11 high card points and a six card suit. By linear extrapolation, I could see opening a hand like AQxxxxx x xx KxxKJx or AKQxxxx x xx Jxx with a 10 high card point hand and a seven card suit. But taking the point card down to nine is probably going "a bridge too far."