Spanish to English Other Idioms / Maxims / Sayings

A text about Argentine artists working in Paris in 1968. The specific context is a printmaking collective that made posters to support the protests:

Michel Wlassicoff también afirma que los latinoamericanos hacían punta con sus propuestas….

That is, "propuestas" for poster designs

Michel Wlassicoff also asserts the proposals of the Latin American artists in the Atelier Populaire were spot on/ excellent...

Thanks