Hi all,
I think I could fairly say that I have towed cats more K's than most sailors in recent years. Too much weight on the hitch is one of my pet hates. I don't think having the axle along way back is neccessary for a good towing trailer.
My last 2 trailers I could pick up with one hand at the hitch, actual trailer weights where light also and they towed great at speed, even when double decked. Plenty of attention to trailer stiffness and no slop in suspension bushes and bolts seemed to do the trick.