When I first started pulling sumo (about a year ago) I felt like I could lock out anything I got off the floor. I was lightning fast as soon as the bar got over my knees.
While I still feel that I can lock out anything I get off the floor, it's now more just because I am stubborn and won't give up on a lift. I did some heavy triples in suit bottoms for my max effort work on Monday and the hardest part of the lift was the lockout.
As a sumo deadlifter, what have you done to improve your lockout?