I'm doing my goblet squats as heavy as I can clean and hold, for reps, AND rock-bottom, not relaxed, but calves firmly pressed against hamstrings. Goal is ten reps with 83 lb. dumbbell while wearing both weight vests (total 48 lbs.). I'm at 73 lbs. now while wearing 21 lb. weight vest.
I figure double that and that equals the equivalent barbell squat, close to 190.