This is a stable, well-constructed boat, and I have had absolutely NO problems with oil canning. I've paddled this boat on everything from lakes and slow moving rivers, to Class II whitewater, and it has never let me down. Aside from the weight, I find nothing to complain about where this boat is concerned. For the money, I don't think you could find a better, more dependable boat that the Kineo/Discovery 169.
It carries a large load and has gotten me through some bad whitewater, but it is a pig to paddle, and a cow to carry. At 16'6" it was advertised as 85 pounds, but it feels closer to 90. The carrying thwart was off center, I redrilled to make it balance, and that helped quite a bit on the long ports. I replaced the plastic seats with wooden ones I had made.
It's a pig meant to be abused, that's about all I can say.