I got a buddy who's got a Scadden Madison River 9' Pontoon boat. He was thinking of getting the X5 for the added length (10'6" long), increased stability, and carrying capacity. We float some rivers with some technical pocket water/boulders and I'm wondering if the raft portion 'U' style end of the X5 will be ok in this application, or a hinderance, compared to a similar sized pontoon boat like say the Scadden Skykomish Sunrise for example (where you would have a channel between the pontoons). He was considering just maybe buying the 'toons which is an option and using his existing frame on his Madison River on either the X5 U style toon or a set of toons like the Skykomish toons as an example. Thoughts?