When I am maxing out, I always touch the floor with a 2 sec pause and end the set with a douchebag slam (only allowed if you deadlift >3 plates each side)

1st set: 12 reps 225lbs
2nd set: 10 reps 275lbs
3rd set: 6 reps 315lbs
last set: 2 reps of 355lbs