I'm from the Boston area and have a Four Winns Vista 258. The painted steel bunk trailer that came with it started rusting out shortly after using it in salt water [they are fresh water only]. Also, brakes locked up.
So I now have a Load-rite roller trailer, galvanized steel. It is a nice trailer. Only problem is it has Tie Down brand brakes, which come standard on a lot of new trailers and are frought with problems [I need a new actuator after only one season].
To answer your question. Your trailer has to be fitted and adjusted to fit the boat. i.e. the rollers or bunks have to be shifted to get the right weight distribution and to be spaced properly with respect to the chines, through hull fittings, bowthruster if you have one, etc. These trailers are hugely adjustable. Even the axle positions can be changed. I shopped for trailers and I found some dealers who will do the adjustments as part of the deal, and others who simply sell you the trailer. Remember, they will have to either lift your machine or launch it multiple times to get the trailer fit right. If you are clever and creative, with jacks and blocks, you can probably adjust it on your own, but I would have it done by a good trailer specialist. Good luck. | 
