I think for under 185 natural around 415lbs is good without straps. 500lbs for a juicer. Over 200lbs 500lbs natural and 600lbs juicer. Of course these are wild generalizations. I worked with a guy who was 5'6" and used a wide sumo stance. I think the plates only came off the floor a foot. Yes, he could deadlift a Buick.