Has anyone modified their V berth to enlarge it? I am talking about something other than a better thicker mattress or topper. My plan is to remove the back rests and then finish the area that is uncovered. Also I plan to have a mattress made that will create an overhang of about 4 inches beyond the current edge of the mattress support. I looked at moving the bulkhead but it would require way to much modification to make it worth while. I saw one comment in an old thread where someone reported removing the back rests but no real elaboration. Thanks.