Finished up Juggernaut base for squats about 3 weeks back and my experience with the program was pretty positive. I ran it with a secondary front squat day as recommended in the original manual, and 5/3/1 programming for a deadlift variation (deficit snatch-grip deadlifts, deficit 2 inch). Deadlifts and FS were beltless, back squats were belted from the 5's wave onwards. During this period was my first time training with a belt. I always squatted high-bar.
Exercise | Before (kg) | After (kg) | Before (lbs) | After (lbs)
:--: |:--: | :--: | :--: | :--:
Back squat | 150 beltless| 150x6 belt & sleeves | 330 beltless| 330x6 belt & sleeves
Front squat | 130 beltless|140 no belt, no sleeves | 286 beltless | 308 no belt, no sleeves
Deficit snatch-grips | 180 beltless | missed 180x3 due to grip | 396 beltless | missed 396x3 due to grip
Conv | 190 beltless, 200 belted | 220 belted | 418 beltless, 440 belted | 485 belted