I have one of the hitches from U-haul. Been using it to tow a 17.5 foot inboard omc outboard all fiberglass w/ 3.0 merc. with no problems. I am using a single axle drive on trailer. I normally tow it 25-30 miles each way. The vx loves to eat gas while towing it but besides that it does great. It is great seeing these guys with there denali's, new tahoo's, or there new escalade towing there boat trying to get the boat out of the water and all they do is spin there tires. The VX just pulls it out no tire spin no problems nothing. I have to back the boat into it's parking spot, when backing it in I have to back up hill in grass put it in low and she works like a champ. I should be getting a chance to tow a 19.5 footer exactly like yours. One of my friends has it if and when i get the chance to pull it I will let you know how it does.