zen grids

Hi there,

I hope this is the best place to post my question, if not please refer me to the proper group / focum or support area! Thank you.

I'm trying to make a responsive (sub theme zen) template using SASS w/ zen grids. I noticed when using the responsive template that it makes the right side bar expand /shrink when you re-size. I only want the main content area to resize. If I set a min-width on the side-bar the percentage margins that zen grids adds breaks the layout.

If I try to set the width in the include statement:

.region-sidebar-second {
//set width to 292px