Great For Slackcountry
The Marker Baron Ski Binding is another offshoot of the almost classic Duke binding as it shares the same chassis shape, but has different materials along with a smaller DIN. And now, the peanut gallery:
"Does it perform like a Duke downhill-wise, but with a smaller DIN range?" Yes.
"Is it as heavy as the Duke and shouldn't use it if you look to get up tall mountains quickly?" Pretty much.
"So, you're saying this is a pretty good slackcountry binding for those smaller people who can't see getting in the Duke's DIN range or someone who takes their time getting up taller mountains?" Nailed it. Not great, but good if you use it realistically.