Watermaster is indeed a sponsor of ours, and Sean Ransom who was our hotshot admin for years (now Speypages admin) owns one and really loves it. Also, our sponsor Rod Builder's Workshop carries them and the owner (Smitty) loves them and uses them all over creation for his fishing adventures. I recall some pictures of him on the Skykomish River on it... (worth a search)
I have yet to try one but since you've reminded me of it's virtues and compromise between the two designs (belly boat / pontoon boat) I am definitely going to try one out.
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