Parents and teachers call him St. Paul's low-key whiz kid. Jake Heichert grew up spurning studying, sleeping through the occasional exam — and, most recently, earning a rare pair of perfect scores on the ACT and SAT. Last week, his family sat around their living room, wondering how it all happened. Rich and Susan Heichert's only child received a 2400 on his SAT college assessment test in May. In February he scored a 36 on his ACT. He earned perfect 5s on his Advanced Placement tests in chemistry, U.S. history, and government and politics. Oh, and calculus, Jake added. Almost...