I have owned my Shearwater solo 16 with a sliding seat for 13 yrs. and love it more than ever. I have paddled it on everything from flat water to fast moving rivers, even in 3 1/2 ft waves with wind on Lake Erie and Lake Michigan. It is a blast to paddle in all conditions. I have taken it on two, week long wilderness trips in Algonquin Provincial Park and found that the sliding seat doubles as a comfortable yoke for long portages. The tumblehome makes it easy to paddle and it tracks very well in wind and waves. It leans well for turns and is very stable. I highly recommend it.