I still don't understand what you want me to do here.  Can you just paste in the actual code block in its entirety cuz I don't know where I am supposed to put 
%grids-icon-button-padding-left-10-padding-right-10 {
    &.button {
        padding-left: 10px;
        padding-right: 10px;
    }
}

For all the back and forth, this is probably easiest if you guys just take my minor code changes and add it to your files but I'm happy to work this by FYI, I'm off the grid until Monday as I'm going away and I only have a few hours this morning to finalize all my stuff.