I have a 15.5 Zephyr. I love the way the boat paddles, handles, etc. Only problem is deck height. I'm having issues with my knees and feel I need a little more room for comfort, but I really don't want to give up the handling aspects of this boat. I mainly paddle it in fairly tight creeks and swamps as I have a composite boat (Cetus LV) for more open spaces. The Cetus, while low volume, has more room for my old painful knees. I know about the Zephyr 16, but wouldn't mind looking at other options (down to say 14'). Any suggestions. 5'10" 170lbs size 10 shoes.