CLUTCH BREAK IN OPINIONS PLZ!!!

Just installed a new Centerforce dual friction clutch. 72 Demon 440 4 speed 3.91 28-11.5 ET Streets. Center force recommends 450-500 miles before hard throttle. I have around 200 miles on it so far. I have heard mixed opinions so far on the break in process for miles. What have you experienced guys done and have to say?