I'm with you Roy.  It takes just as much work to feed a 900 lb bale as it does an 1800 lb one.  If your equipment won't handle the bales, that's an equipment problem not a bale problem.  Fix the equipment.  A bale bed will haul three 1800 lb'ers unless there's something wrong with it.   If it won't lift them, there's something wrong with the hydraulics.