Bike Rack Questions-- Again

Having seen too many bikes bouncing up and down and side to side on the back of trailers I would not put ours back there. Removed the front wheels and carried them (3) laying in front of and behind the hitch in my long bed truck. Removing the wheels was a pain and stacking them caused some scratches. But I recently fabricated a pin box receiver to hold the 4 bike rack. A few feet of 2x2 angle iron and a cheap receiver tube from Harbor Freight and it works great. Not sure I can get 4 bikes on it, but 3 works. We normally only carry two anyway.