The LS type has less protein. It turns into a big bale of hay when it gets wet. It expands by a factor of ten. The regular Mazuri just gets soft and kinda creamy.
Every tortoise I own, two leopards included, are crazy for the stuff! No issue at all getting them to eat it. They prefer it to anything else so it's hard to get them to eat other foods.
I find it interesting all the misinformation about the new LS Mazuri. Here are a few pics to help dispel some. The first pic is of each type being soaked. The second pic is of a dry piece and a soaked piece of each type, The third pic is the broken up piece of the soaked LS type. The fourth pic is the soaked piece of the LS type mixed onto some organic baby romaine leaves. The last pic is Whetstone getting ready to eat it. I like and use both types, each has a place in some of my tortoises diets.
I use both right now. I had ordered the LS type and all my guys ate it for a day or two then my baby's quit eating it so I had to order some regular for them so I feed the regular kind to my 4 sulcata baby's, I attempt to feed it to my leopard baby but she won't touch it. I soak a cup of the LS type (it does mush up as good as the regular does) and a cup of the regular, mix it together and feed that to my big guys. I personally can't stand the way the LS type smells and it's more expensive then the regular so once we use up all the LS kind I won't order it anymore, I personally will stick with the regular type.