It’s no secret the real juice from the McDonald’s All-American Game doesn’t come from the game itself, but rather the practices and scrimmages leading up to the prestigious all-star event. That’s where the high-profile attendees bring the energy and competition, where scouts and analysts separate the best from the rest. Money is made then, not in the Powerade Jam Fest or McDAAG the following evening — those are fan events for entertainment purposes only. Three Kentucky pledges are in Houston participating this week, Jayden Quaintance and Boogie Fland teaming up on the East Team and Karter Knox…