i was actually really surprised when i built that hitch, it was only going to be a prototype but it worked so well i just neatened it up and put it on.
it's just a telascopic small diamiter tube that slides out of the bigger size on the trailer draw bar, and then held with a bolt, really easy to disconect
i was thinking about the width issue, but nearly everybody rides on the road these days, it was a weigh up between boards or narrowness, i didnt want to have the boards fully verticial like alot of other trailers because of the wind would push the trailer around so i did a compromise.
for smaller boards, if they are to small to fit in the racks they can just sit ontop of the kites.
im still thinking up ideas for a lockable compartment, im just gona use the old bike chain for the moment though
thanks for all the feedback!!