The Aquaglide Klickitat drains very poorly. Its relatively narrow, smaller tubes, and unstable in big whitewater; ok for class 3; if you push into 3+/4 there will be more swims, less fun
. Its more of a "crossover" kayak, for lakes and gentle whitewater.
Another thread on here someone said the Sevylorsk100ds drains well, which would be a big improvement over the Sevylor K2 River XDS. Where can you find Sevylorsk100ds any more though, aren't they discontinued?
More 2 person IK thoughts here:
Tributary Vs Aire
Which Inflatable Kayak?