The flaperon mixer only affects the width of the bagage area as it is below and on the sides. I have a suggestion, though. I have been aircamping several times with guys that carried folding chairs attached to the lift struts (at the jury struts) with bungee cords. NOt being a golfer, I don't know how this would fit. I put hard points on one of mine for just this idea.

Another thought, however - the inspector that airworthied the neighbors Lancair IV spend his career as an accident investigator in Alaska. His story was that there were numerous survivable crashes with fatalities or severe injuries due to dislodged baggage coming forward violently at the time of impact. The one that really hit me was the guy that was speared in the back of his head by a fishing pole. Then there was the double fatality three years ago, here - back seat passengers in a Bonanza who were impacted by scuba tanks and a cooler full of beer. Be really careful!