Both seem the same to me. The biggest difference I noticed is ML1 drops down to 3G much more often. I almost never saw 3G with MF1 as it would stay in a low 4G instead. I'm guessing they opted to drop down to 3G for a better user experience if it was stronger than a weak 4G.

Sent from my SCH-I535
Sent from my SCH-I535