I know what you mean, I'm a Cocoa Alumni, from way back. Cocoa had a rough start with all the young players, but they seem to be coming together at the right time. They have a big challenge with Cardinal Mooney this week. Their game against Norland was the only time I didn't pick them. I will probably go with Cocoa this week.
I do not use it in for high schools. I did use home field advantage several years ago in a somewhat futile attempt to keep accuracy pace with Joe Pinkos who did not use home field advantage. But it's basically meaningless. It works out to less than 1/2 point per game on average. Anyway, the last time I used home field advantage for high schools, it was around 0.34 points.