How to mount Emigo top case to support two up passenger leaning on case w backrest. Decided better to mount from underneath using rear antler bracket. Cut up some 1/8 flat stock, badly welded with stick welder, welded on mounting nuts then bolted to front two rear brackets. Holds case on nice angle and can wiggle whole bike with case. Doesn't look too bad with rattle black finish and can remove in like 2 mins.