I wrap my knees after 335 on every squat set, but I have had major surgery on my knee and its more for fear than anything. I wear knee sleeves on my elbows on bench days, mostly because its hard to find an elbow sleeve that fits. I think you will want the sleeves more than the wraps. Never used the knee sleeves, but I would trust Swede and Fraz on their recommendation.
Best meet lifts: 1040squat, 730 bench, 730 deadlift
Best total: 1040-680-730=2450
"This is about strength, not getting a 10.0 form score from the Russian judge" Steve Shaw