Some times I like to provide a different gutter width at different sizes. Some example code.

.myElement {
  .make-xs-column(4, 0);
  .make-sm-column(4, 10px);
}

^ This does not work. It always takes the last applied gutter width, 10px in this example. Clearly it's because inside the mixin, the media query only includes float and width. I can't see a reason this would be? It seems like everything in the .make-**-column would be totally breakpoint dependent.