Because of the way fabrics react in the water,once absorbed and saturated, the clothes even if I pack it full, fall from the original level they're at when loaded. That enables them to,not only tumble but relax and distribute evenly. There could be more tangling but,if you load them individually,not all bunched up in a ball, they don't tangle as much. I have yet to overload my babies and am real abusive with larger,bulky loads. Five dogs use lots of the dog beds that fit and five people use lots of bath towels,beach towels,and, bed linens. So,due to our $.49/KWH electric bill,normally around $700, has been lowered to $460 after I got the fls. The lower water use,the higher spin and hanging out instead of in a dryer contribute to the lower power bill.