The Latigo sling is basically a leather version of the super sling. One hand operation to shorten or lengthen and will hold that length when set. My Montana sling slips and will not hold the length when carrying on my shoulder. The Latigo will also adjust to a longer length, which works better for military style sling bracing when shooting.
I have three Latigo slings and one Montana sling. JMHO, your mileage may vary.