Back squat Strength

Right away after snatching :
3x3 reps @ 51-61-71
then
3x3reps @ 81-86-91% (main sets)
Rest 1.5-2.5 min bwn sets. Time limit is 20 mins for back squats. You dont have to do "light squats just put about 51% of 1rm and start working. Save the most rest time for heaviest squats.