I heard this from an ATV shop.
The first time that you ride after putting on new pads, ride the brakes for a minute or two. This gets the pad hot. When it cools, it hardens itself harder than new. They should last longer if you do this.
1999 416ex:
Maxxis Razr2 Fronts; Maxxis Razr Rears; Hi-Per Carbon Fiber wheels;White Brother's E-Series Slip on; AC Pro-Peg nerf bars; AC swingarm skid plate; DG full Body skid plate; DG A-arm guards; DG Front bumper; K&N power kit; Houser steering stem and clamp; Tag X5 bars; Scott Comp2 grips; Enduro Engeneering Handguards; IMS large capacity gas tank; N-Style gripper seat cover; Gunner teather killswitch; Lonestar brake blockoff plate; #42 pilot jet; #155 main jet; Wiseco 11-1 piston; Hotcams Stage 2; ProFab heavy duty timing chain; Heavy Duty Clutch Springs; 14 tooth front Sprocket; High Speed Dirt HD tie rods; Custom Axis Dual Rate Shocks; Outerwears airbox cover, shock covers; Maier smoothy hood, oil line guard, frame guards; Heavy Duty YUASA battery; Ground welds in stock headpipe; Galfer Red Stainless Steel Brake Lines; DID chain; Sunstar Sprockets; Tinner's Air Scoops.