"the team beats everyone in LI save STA every few years."

Please check yourself on the above comment. St. A's OWNS Chaminade... I won't even get into the recent (last 3 decades of football dominance as well).
Chaminade is the laughing stock of lacrosse when they lose to one of the publics, which they do most years, and the entire island is there to cheer that loss. Get off your high horse...300+ boys, many of which were recruited to play lax there, and you are going to tout beating publics with 100 boys to choose from in some cases?? Go back to your 1/8th acre stamp and continue dreaming of your son escaping your miserable life and getting to GC so you can stop running from your public school district.