Yep, I bought the 12" one and used it twice but it made the paddle a little too long for my situation. One thing I noticed, you could feel the extra play and while it didn't effect functionality, it took a little getting used to. I used it on an OT Disco 158 tandem canoe I setup for solo use with a center seat. I am high off the water (like 12") and the gunnel width is 35" in that boat. I found the 275cm works fine for me without the extension. I doubt you would need it in the NuCanoe but then again I have never paddled one.