I'm afraid I can't comment on the comparison, but can attest to the Legends Performance Pellet being a good choice. I've got an ulcer-prone 8 year old OTTB who also occasionally ties up (those random unseasonably warm days when he does way too much). A low-starch diet is a must for him. I'm a HUGE fan of McCaulay Bros. feed (local for us), but they don't offer a low-starch option that he will eat, so I switched to the Legends. I bet he gained 100 lbs. over this very hard winter!! He is coming into spring actually looking a little chubby and he has never, ever looked chubby in his life. Great feed!