Hi all, first time poster. I'm looking at a couple of different new boats in the 18ft. range or so and need some advice on towing. My vehicle is a 2011 Kia Sorento V6. Manual says 3500lb. towing capacity with trailer brakes. Do most trailers come with brakes and if so are they surge type brakes? How close to the rated weight limit is actually OK to do. I know the boats I'm looking at are on single axle trailers. I don't see any mountain driving/towing in my boating future. Any info would be appreciated and I'm sure I'll have some more questions. Thanks, Sean