While you are on the site, in your browser find and click "Add to Home Screen" A CGN beaver app icon will then be created to your phone that is directly link to the site.
Note: This feature may not be available in some browsers.
Yes, take a file or dremel and bring the metal down so that the case can clear. Had to do this with all my grey LARs. Since then, seldom do I get FTF issues with those.