The 26 is a modified 25, mainly it was lengthened, the sides of the boat were raised an inch or 2 which you can easily notice when comparing the 2 hulls by the flat area under the rub rail, and the entry was changed to help in a following sea, Stacey really knows his stuff and is one hell of a boat builder. He deisigned the boat himself by taking the best aspects of all the downeast hulls and putting them into one. Cotty Fay, who Stacey regards as one of the best NA's, worked with him on making the changes.