[M_a_t_t]

Do you mean the round nose? Or something else?



Remember that the solution is going to be based on the tow vehicle's wake. It looks like it is pretty well set up currently in regards to the top. I would start by filling in the gap between the 2 as best you can. Maybe just keep it simple and build a box on the front of the trailer that matches the projection of the boat. If it doesn't mess with your turning or anything that is. Don't forget the trailer has a wake as well, so you can gain some by working on the rear of the trailer too.