Pretty good, really. No drama. I think it benefits from being well-lubed. Using an older XT double mech to get the right cage shape, don't think the CX70 mech on the Salsa would cut it. And no idea how much of it is the Middleburn rings, they're stiff af
Middleburn RS7. 42/26 rings on a triple mtb spider, with a filed 46t as a chain guard